diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3f1c135
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,32 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# node-waf configuration
+.lock-wscript
+
+# Dependency directory
+node_modules
+
+# Compiled JS directory
+/dist/*
+!/dist/iexec.js
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+docs/
+wallet.json
+account.json
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..02bbb60
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
\ No newline at end of file
diff --git a/README.md b/README.md
index fecb605..c49c136 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,86 @@
-# iexec dapps samples
+# Scrapto
+# Idea Proposal
+Scrapto is developing technology to provide industry-leading services for data extraction. 
+It aims to takes full advantage of the decentralized cloud by using:
+* iExec computing marketplace to perform data extraction tasks
+* blockchain tech to enable per-request billing via microtransactions
+## Why now
+Three main components are vital in the design of our solution:
+##### Micropayment model
+The latest advances in cryptocurrency facilitates micropayments. Per-request billing is enabled by iExec RLC.
+##### Computing marketplace
+Without iExec computing marketplace we would have to implement a network of client/worker nodes ourselves specialized in scraping tasks. But most of the difficult work is already done by iExec:
+* Creating software for the worker nodes
+* Scheduling
+* Proof of contribution
+* and a lot of other things
+##### Web scraping advances
+Up until recently, it was difficult to fully simulate a user session during scraping. Launch of Chrome headless changed that. It's like a normal Chrome browser that can be controlled programmatically. This enables us:
+* bypass web-scraping detection mechanisms more easily 
+* provide users with advanced scraping scenarios
+## Our solution
+### Data Extraction Tech
+There are several important components in web scraping. In a nutshell:
+* Having multiple ips. Requests coming from the same IPs are easily detected and then blocked.
+* Using screenscrapers (headless browsers).  Harder to detect, as they run scripts, render HTML, and can behave like a real human browsing a site.
 
-This is the registry for sample iexec dapps, used by the iexec-sdk cli.
+**Professional web scraping services**: use large networks of proxies and ever changing IP addresses to get around limits and blocks.
+We are looking into iExec architecture to see if we can use individual worker nodes IPs to make data extraction requests. Or if it’s allowed. 
+This would mean we do not need to invest in proxy pools and the traffic might seem more organic. 
 
-Each branch name of this repo can be used as an argument to iexec init command.
+**Headless parsing** The ultimate goal of a web scraper session is to be indistinguishable from a normal user session. A headless browser is a browser that can be used without a graphical interface. It can be controlled programmatically to automate tasks, such as doing tests or taking screenshots of webpages. We are planning to use Chrome headless to run our data extraction tasks on web pages.
+### Components
+#### Visual data extraction tool
+A powerful visual tool to create data extraction flows. Available as a Chrome extension, extraction flows results can be seen live then exported and used as input in a chrome headless instance in a Iexec worker. Same data extraction code run in the extension is run in the headless browser as well. 
+#### Scrapto Dashboard
+The Dashboard is the frontend dAPP of our application. In the Dashboard users can:
+* create new scraper projects
+* input data extraction flows
+* devise scraper schedules
+#### iExec Worker App
+Worker running data extraction flows configured in the visual helper tool. Same code powering extraction results preview in the extension is used here. 
+Depending on the configured job the worker can run the flow in:
+* jsdom: A JavaScript implementation of the WHATWG DOM and HTML standards, for use with node.js
+* Chrome Headless run code in a Chrome browser without GUI.
 
-ex:
+# Roadmap
+## Current work
+* We already have a working prototype of the visual data extraction tool:
+    * Runs as an extension in Chrome
+    * Runs the same data extraction flow in jsdom (Node.js) as in Chrome
+* We did not start from scratch. We are modifying a fork of an open source extension.
+## Version 0.1 [Done]
+* Bootstrap iExec project
+* Create a binary from the Node.js app using nexe
+* Simple Dapp smart contract
+## Version 0.2 (3 months)
+* Make job scheduling work (1 month)
+    * Invoke Ethereum iExec task from back-end
+* Research and implement jobs results persistence (1 month)
+* Add new features to visual extraction tool (1 month)
+    * Enable passing options to JSDOM to toggle script execution inside pages based on job details
+    * Add new headless provider as an alternative to jsdom: Google Chrome headless
+    * Research how to package app with new provider
+## Version 0.3 (1 month)
+* Develop Scrapto Dahsboard initial version
 
-```bash
-iexec init
-iexec init factorial
-iexec init echo
-```
+## Version 1.0 (2 months)
+* Add notification streams when content changes. A change in a specific selector value will trigger this.
+* Useful for :
+    * ecommerce price alignment and monitoring.
+    * competitor SEO monitoring
+## Version 2.0 (1 month)
+* add a plugin like architecture and let third-party plugins run on extracted content
+* various layers of functionality can be added to the project
+    * content diffing
+    * sentiment analysis
+# Component diagram
+![component diagram](https://raw.githubusercontent.com/skunkworkscryptolab/iexec-dapp-samples/scrapto/img/scrapto-component.png "Component Diagram")
+# Sequential diagram
+![sequential diagram](https://raw.githubusercontent.com/skunkworkscryptolab/iexec-dapp-samples/scrapto/img/scrapto-sequence.png "Sequential Diagram")
+
+# Resources
+* Our visual tool and headless worker repo can be found here: https://github.com/skunkworkscryptolab/scrapto-client-worker.
+
+# Copyright
+Our visual tool extension is a fork of the amazing work done by: https://github.com/furstenheim/web-scraper-chrome-extension/
\ No newline at end of file
diff --git a/apps/README.md b/apps/README.md
new file mode 100644
index 0000000..bc23275
--- /dev/null
+++ b/apps/README.md
@@ -0,0 +1,7 @@
+Your iExec Dapp is composed of two parts:
+
+* under the ```apps``` directory :
+Put the offchain app (any kind of legacy application). The offchain app will be executed by the iExec decentralized cloud.
+
+* under the ```contracts``` directory :
+A smart contract that interfaces with your iExec Dapp, it will serve as a gateway from Ethereum to your offchain app.
diff --git a/apps/Scrapto b/apps/Scrapto
new file mode 100755
index 0000000..f31116c
Binary files /dev/null and b/apps/Scrapto differ
diff --git a/build/contracts/ERC20.json b/build/contracts/ERC20.json
new file mode 100644
index 0000000..4ff7828
--- /dev/null
+++ b/build/contracts/ERC20.json
@@ -0,0 +1,1036 @@
+{
+  "contractName": "ERC20",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "name": "ok",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "name": "ok",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "who",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "name": "ok",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "name": "spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    }
+  ],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "sourceMap": "",
+  "deployedSourceMap": "",
+  "source": "pragma solidity ^0.4.8;\n\ncontract ERC20 {\n  uint public totalSupply;\n  function balanceOf(address who) constant returns (uint);\n  function allowance(address owner, address spender) constant returns (uint);\n\n  function transfer(address to, uint value) returns (bool ok);\n  function transferFrom(address from, address to, uint value) returns (bool ok);\n  function approve(address spender, uint value) returns (bool ok);\n  event Transfer(address indexed from, address indexed to, uint value);\n  event Approval(address indexed owner, address indexed spender, uint value);\n}\n",
+  "sourcePath": "rlc-token/contracts/ERC20.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "rlc-token/contracts/ERC20.sol",
+      "exportedSymbols": {
+        "ERC20": [
+          1004
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".8"
+          ]
+        },
+        "id": 940,
+        "name": "PragmaDirective",
+        "src": "0:23:5"
+      },
+      {
+        "attributes": {
+          "baseContracts": [
+            null
+          ],
+          "contractDependencies": [
+            null
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": false,
+          "linearizedBaseContracts": [
+            1004
+          ],
+          "name": "ERC20",
+          "scope": 1005
+        },
+        "children": [
+          {
+            "attributes": {
+              "constant": false,
+              "name": "totalSupply",
+              "scope": 1004,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "uint256",
+              "value": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "name": "uint",
+                  "type": "uint256"
+                },
+                "id": 941,
+                "name": "ElementaryTypeName",
+                "src": "44:4:5"
+              }
+            ],
+            "id": 942,
+            "name": "VariableDeclaration",
+            "src": "44:23:5"
+          },
+          {
+            "attributes": {
+              "body": null,
+              "constant": true,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "balanceOf",
+              "payable": false,
+              "scope": 1004,
+              "stateMutability": "view",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "who",
+                      "scope": 949,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 943,
+                        "name": "ElementaryTypeName",
+                        "src": "90:7:5"
+                      }
+                    ],
+                    "id": 944,
+                    "name": "VariableDeclaration",
+                    "src": "90:11:5"
+                  }
+                ],
+                "id": 945,
+                "name": "ParameterList",
+                "src": "89:13:5"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "",
+                      "scope": 949,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 946,
+                        "name": "ElementaryTypeName",
+                        "src": "121:4:5"
+                      }
+                    ],
+                    "id": 947,
+                    "name": "VariableDeclaration",
+                    "src": "121:4:5"
+                  }
+                ],
+                "id": 948,
+                "name": "ParameterList",
+                "src": "120:6:5"
+              }
+            ],
+            "id": 949,
+            "name": "FunctionDefinition",
+            "src": "71:56:5"
+          },
+          {
+            "attributes": {
+              "body": null,
+              "constant": true,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "allowance",
+              "payable": false,
+              "scope": 1004,
+              "stateMutability": "view",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "owner",
+                      "scope": 958,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 950,
+                        "name": "ElementaryTypeName",
+                        "src": "149:7:5"
+                      }
+                    ],
+                    "id": 951,
+                    "name": "VariableDeclaration",
+                    "src": "149:13:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "spender",
+                      "scope": 958,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 952,
+                        "name": "ElementaryTypeName",
+                        "src": "164:7:5"
+                      }
+                    ],
+                    "id": 953,
+                    "name": "VariableDeclaration",
+                    "src": "164:15:5"
+                  }
+                ],
+                "id": 954,
+                "name": "ParameterList",
+                "src": "148:32:5"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "",
+                      "scope": 958,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 955,
+                        "name": "ElementaryTypeName",
+                        "src": "199:4:5"
+                      }
+                    ],
+                    "id": 956,
+                    "name": "VariableDeclaration",
+                    "src": "199:4:5"
+                  }
+                ],
+                "id": 957,
+                "name": "ParameterList",
+                "src": "198:6:5"
+              }
+            ],
+            "id": 958,
+            "name": "FunctionDefinition",
+            "src": "130:75:5"
+          },
+          {
+            "attributes": {
+              "body": null,
+              "constant": false,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
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+              "payable": false,
+              "scope": 1004,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "to",
+                      "scope": 967,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
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+                          "name": "address",
+                          "type": "address"
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+                        "name": "ElementaryTypeName",
+                        "src": "227:7:5"
+                      }
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+                    "name": "VariableDeclaration",
+                    "src": "227:10:5"
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+                    "attributes": {
+                      "constant": false,
+                      "name": "value",
+                      "scope": 967,
+                      "stateVariable": false,
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+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
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+                          "name": "uint",
+                          "type": "uint256"
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+                        "name": "ElementaryTypeName",
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+                      }
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+                    "name": "VariableDeclaration",
+                    "src": "239:10:5"
+                  }
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+                "name": "ParameterList",
+                "src": "226:24:5"
+              },
+              {
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+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "ok",
+                      "scope": 967,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "bool",
+                      "value": null,
+                      "visibility": "internal"
+                    },
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+                      {
+                        "attributes": {
+                          "name": "bool",
+                          "type": "bool"
+                        },
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+                        "name": "ElementaryTypeName",
+                        "src": "260:4:5"
+                      }
+                    ],
+                    "id": 965,
+                    "name": "VariableDeclaration",
+                    "src": "260:7:5"
+                  }
+                ],
+                "id": 966,
+                "name": "ParameterList",
+                "src": "259:9:5"
+              }
+            ],
+            "id": 967,
+            "name": "FunctionDefinition",
+            "src": "209:60:5"
+          },
+          {
+            "attributes": {
+              "body": null,
+              "constant": false,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "transferFrom",
+              "payable": false,
+              "scope": 1004,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "from",
+                      "scope": 978,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
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+                        "name": "ElementaryTypeName",
+                        "src": "294:7:5"
+                      }
+                    ],
+                    "id": 969,
+                    "name": "VariableDeclaration",
+                    "src": "294:12:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "to",
+                      "scope": 978,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 970,
+                        "name": "ElementaryTypeName",
+                        "src": "308:7:5"
+                      }
+                    ],
+                    "id": 971,
+                    "name": "VariableDeclaration",
+                    "src": "308:10:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "value",
+                      "scope": 978,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 972,
+                        "name": "ElementaryTypeName",
+                        "src": "320:4:5"
+                      }
+                    ],
+                    "id": 973,
+                    "name": "VariableDeclaration",
+                    "src": "320:10:5"
+                  }
+                ],
+                "id": 974,
+                "name": "ParameterList",
+                "src": "293:38:5"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "ok",
+                      "scope": 978,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "bool",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "bool",
+                          "type": "bool"
+                        },
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+                        "name": "ElementaryTypeName",
+                        "src": "341:4:5"
+                      }
+                    ],
+                    "id": 976,
+                    "name": "VariableDeclaration",
+                    "src": "341:7:5"
+                  }
+                ],
+                "id": 977,
+                "name": "ParameterList",
+                "src": "340:9:5"
+              }
+            ],
+            "id": 978,
+            "name": "FunctionDefinition",
+            "src": "272:78:5"
+          },
+          {
+            "attributes": {
+              "body": null,
+              "constant": false,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "approve",
+              "payable": false,
+              "scope": 1004,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "spender",
+                      "scope": 987,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 979,
+                        "name": "ElementaryTypeName",
+                        "src": "370:7:5"
+                      }
+                    ],
+                    "id": 980,
+                    "name": "VariableDeclaration",
+                    "src": "370:15:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "value",
+                      "scope": 987,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 981,
+                        "name": "ElementaryTypeName",
+                        "src": "387:4:5"
+                      }
+                    ],
+                    "id": 982,
+                    "name": "VariableDeclaration",
+                    "src": "387:10:5"
+                  }
+                ],
+                "id": 983,
+                "name": "ParameterList",
+                "src": "369:29:5"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "ok",
+                      "scope": 987,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "bool",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "bool",
+                          "type": "bool"
+                        },
+                        "id": 984,
+                        "name": "ElementaryTypeName",
+                        "src": "408:4:5"
+                      }
+                    ],
+                    "id": 985,
+                    "name": "VariableDeclaration",
+                    "src": "408:7:5"
+                  }
+                ],
+                "id": 986,
+                "name": "ParameterList",
+                "src": "407:9:5"
+              }
+            ],
+            "id": 987,
+            "name": "FunctionDefinition",
+            "src": "353:64:5"
+          },
+          {
+            "attributes": {
+              "anonymous": false,
+              "name": "Transfer"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": true,
+                      "name": "from",
+                      "scope": 995,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 988,
+                        "name": "ElementaryTypeName",
+                        "src": "435:7:5"
+                      }
+                    ],
+                    "id": 989,
+                    "name": "VariableDeclaration",
+                    "src": "435:20:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": true,
+                      "name": "to",
+                      "scope": 995,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 990,
+                        "name": "ElementaryTypeName",
+                        "src": "457:7:5"
+                      }
+                    ],
+                    "id": 991,
+                    "name": "VariableDeclaration",
+                    "src": "457:18:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": false,
+                      "name": "value",
+                      "scope": 995,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 992,
+                        "name": "ElementaryTypeName",
+                        "src": "477:4:5"
+                      }
+                    ],
+                    "id": 993,
+                    "name": "VariableDeclaration",
+                    "src": "477:10:5"
+                  }
+                ],
+                "id": 994,
+                "name": "ParameterList",
+                "src": "434:54:5"
+              }
+            ],
+            "id": 995,
+            "name": "EventDefinition",
+            "src": "420:69:5"
+          },
+          {
+            "attributes": {
+              "anonymous": false,
+              "name": "Approval"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": true,
+                      "name": "owner",
+                      "scope": 1003,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 996,
+                        "name": "ElementaryTypeName",
+                        "src": "507:7:5"
+                      }
+                    ],
+                    "id": 997,
+                    "name": "VariableDeclaration",
+                    "src": "507:21:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": true,
+                      "name": "spender",
+                      "scope": 1003,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 998,
+                        "name": "ElementaryTypeName",
+                        "src": "530:7:5"
+                      }
+                    ],
+                    "id": 999,
+                    "name": "VariableDeclaration",
+                    "src": "530:23:5"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "indexed": false,
+                      "name": "value",
+                      "scope": 1003,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 1000,
+                        "name": "ElementaryTypeName",
+                        "src": "555:4:5"
+                      }
+                    ],
+                    "id": 1001,
+                    "name": "VariableDeclaration",
+                    "src": "555:10:5"
+                  }
+                ],
+                "id": 1002,
+                "name": "ParameterList",
+                "src": "506:60:5"
+              }
+            ],
+            "id": 1003,
+            "name": "EventDefinition",
+            "src": "492:75:5"
+          }
+        ],
+        "id": 1004,
+        "name": "ContractDefinition",
+        "src": "25:544:5"
+      }
+    ],
+    "id": 1005,
+    "name": "SourceUnit",
+    "src": "0:570:5"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.993Z"
+}
\ No newline at end of file
diff --git a/build/contracts/IexecLib.json b/build/contracts/IexecLib.json
new file mode 100644
index 0000000..4a3187e
--- /dev/null
+++ b/build/contracts/IexecLib.json
@@ -0,0 +1,127 @@
+{
+  "contractName": "IexecLib",
+  "abi": [],
+  "bytecode": "0x60606040523415600e57600080fd5b603580601b6000396000f3006060604052600080fd00a165627a7a723058203d915f9a840ab23e889ffc5680df47849f31afeb3759254af85def4473b667830029",
+  "deployedBytecode": "0x6060604052600080fd00a165627a7a723058203d915f9a840ab23e889ffc5680df47849f31afeb3759254af85def4473b667830029",
+  "sourceMap": "34:99:1:-;;;;;;;;;;;;;;;;;",
+  "deployedSourceMap": "34:99:1:-;;;;;",
+  "source": "pragma solidity ^0.4.18;\n//v1.1.1\nlibrary IexecLib{\n\n    enum StatusEnum { UNSET, UNAVAILABLE, PENDING, RUNNING, COMPLETED, ERROR}\n\n}",
+  "sourcePath": "iexec-oracle-contract/contracts/IexecLib.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "iexec-oracle-contract/contracts/IexecLib.sol",
+      "exportedSymbols": {
+        "IexecLib": [
+          32
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".18"
+          ]
+        },
+        "id": 24,
+        "name": "PragmaDirective",
+        "src": "0:24:1"
+      },
+      {
+        "attributes": {
+          "baseContracts": [
+            null
+          ],
+          "contractDependencies": [
+            null
+          ],
+          "contractKind": "library",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            32
+          ],
+          "name": "IexecLib",
+          "scope": 33
+        },
+        "children": [
+          {
+            "attributes": {
+              "canonicalName": "IexecLib.StatusEnum",
+              "name": "StatusEnum"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "name": "UNSET"
+                },
+                "id": 25,
+                "name": "EnumValue",
+                "src": "75:5:1"
+              },
+              {
+                "attributes": {
+                  "name": "UNAVAILABLE"
+                },
+                "id": 26,
+                "name": "EnumValue",
+                "src": "82:11:1"
+              },
+              {
+                "attributes": {
+                  "name": "PENDING"
+                },
+                "id": 27,
+                "name": "EnumValue",
+                "src": "95:7:1"
+              },
+              {
+                "attributes": {
+                  "name": "RUNNING"
+                },
+                "id": 28,
+                "name": "EnumValue",
+                "src": "104:7:1"
+              },
+              {
+                "attributes": {
+                  "name": "COMPLETED"
+                },
+                "id": 29,
+                "name": "EnumValue",
+                "src": "113:9:1"
+              },
+              {
+                "attributes": {
+                  "name": "ERROR"
+                },
+                "id": 30,
+                "name": "EnumValue",
+                "src": "124:5:1"
+              }
+            ],
+            "id": 31,
+            "name": "EnumDefinition",
+            "src": "57:73:1"
+          }
+        ],
+        "id": 32,
+        "name": "ContractDefinition",
+        "src": "34:99:1"
+      }
+    ],
+    "id": 33,
+    "name": "SourceUnit",
+    "src": "0:133:1"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.990Z"
+}
\ No newline at end of file
diff --git a/build/contracts/IexecOracle.json b/build/contracts/IexecOracle.json
new file mode 100644
index 0000000..4ee15cf
--- /dev/null
+++ b/build/contracts/IexecOracle.json
@@ -0,0 +1,9719 @@
+{
+  "contractName": "IexecOracle",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "toggleContractActive",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "dapp",
+          "type": "address"
+        }
+      ],
+      "name": "getDappPrice",
+      "outputs": [
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "name": "dapp",
+          "type": "address"
+        },
+        {
+          "name": "status",
+          "type": "uint8"
+        },
+        {
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "name": "stderr",
+          "type": "string"
+        },
+        {
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "submitCallback",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWork",
+      "outputs": [
+        {
+          "name": "timestamp",
+          "type": "uint256"
+        },
+        {
+          "name": "status",
+          "type": "uint8"
+        },
+        {
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "name": "stderr",
+          "type": "string"
+        },
+        {
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "callbackPrice",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "dapp",
+          "type": "address"
+        }
+      ],
+      "name": "getDapp",
+      "outputs": [
+        {
+          "name": "dappName",
+          "type": "string"
+        },
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        },
+        {
+          "name": "provider",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWorkUri",
+      "outputs": [
+        {
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "dapp",
+          "type": "address"
+        }
+      ],
+      "name": "getDappName",
+      "outputs": [
+        {
+          "name": "dappName",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "dapp",
+          "type": "address"
+        }
+      ],
+      "name": "getProvider",
+      "outputs": [
+        {
+          "name": "provider",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        },
+        {
+          "name": "dappName",
+          "type": "string"
+        }
+      ],
+      "name": "registerDappAndProvider",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "stopped",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "iexecOracleEscrow",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWorkStderr",
+      "outputs": [
+        {
+          "name": "stderr",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_callbackPrice",
+          "type": "uint256"
+        }
+      ],
+      "name": "changeCallbackPrice",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWorkStatus",
+      "outputs": [
+        {
+          "name": "status",
+          "type": "uint8"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWorkStdout",
+      "outputs": [
+        {
+          "name": "stdout",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "param",
+          "type": "string"
+        }
+      ],
+      "name": "submit",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": true,
+      "stateMutability": "payable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "rlcTokenAddress",
+          "type": "address"
+        },
+        {
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "emergencyERC20Drain",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getWorkTimestamp",
+      "outputs": [
+        {
+          "name": "timestamp",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_iexecOracleEscrow",
+          "type": "address"
+        },
+        {
+          "name": "_callbackPrice",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "dapp",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "provider",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "args",
+          "type": "string"
+        }
+      ],
+      "name": "Submit",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "indexed": true,
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "SubmitCallback",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "dapp",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "provider",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "dappPrice",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "dappName",
+          "type": "string"
+        }
+      ],
+      "name": "Register",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "code",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "message",
+          "type": "string"
+        }
+      ],
+      "name": "Error",
+      "type": "event"
+    }
+  ],
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+  "source": "pragma solidity ^0.4.18;\n//v1.1.1\nimport './IexecOracleAPI.sol';\nimport './IexecOracleEscrow.sol';\nimport './IexecLib.sol';\nimport \"rlc-token/contracts/Ownable.sol\";\nimport \"rlc-token/contracts/RLC.sol\";\n\n\ncontract IexecOracle is Ownable {\n\n\n    bool public stopped = false;\n    /*\n     * EVENTS AND MODIFIERS\n     */\n    event Submit(address indexed user, address indexed dapp, address indexed provider, string args); // special log to launch process\n    event SubmitCallback(bytes32 submitTxHash, address indexed user, string stdout, string uri);\n    event Register(address indexed dapp, address indexed provider,uint256 dappPrice, string dappName);\n    event Error(uint code,string message);\n\n    IexecOracleEscrow public iexecOracleEscrow;\n\n    uint256 public callbackPrice;\n\n    struct Work {\n      uint256 timestamp;\n      IexecLib.StatusEnum status;\n      string stdout;\n      string stderr;\n      string uri;\n    }\n    //mapping (submitTxHash => Work) workRegistry;\n    mapping (bytes32 => Work) workRegistry;\n\n    struct Dapp {\n      string dappName;\n      uint256 dappPrice;\n      address provider;\n    }\n\n    //mapping (dapp address => Dapp Struct)\n    mapping (address => Dapp ) dappRegistry ;\n\n    modifier stopInEmergency {\n      require(!stopped);\n      _;\n    }\n\n    modifier onlyRegistered(){\n        assert(dappRegistry[msg.sender].provider != 0x0);\n        _;\n    }\n\n    modifier checkCallbackPrice(){\n        if(msg.value < callbackPrice){\n          Error(1,\"msg.value needed for submit callback gas is too low. Check the current callbackPrice\");\n          revert();\n        }\n        if(msg.value >= 1 ether){\n          Error(2,\"msg.value needed for submit callback gas is too high. Must be lower than 1 ether\");\n          revert();\n        }\n        _;\n    }\n\n    //constructor\n    function IexecOracle(address _iexecOracleEscrow,uint256 _callbackPrice) public {\n        iexecOracleEscrow=IexecOracleEscrow(_iexecOracleEscrow);\n        callbackPrice=_callbackPrice;\n    }\n\n    // Circuit Breakers\n    function toggleContractActive() onlyOwner public\n    {\n        stopped = !stopped;\n    }\n\n    function registerDappAndProvider(uint256 dappPrice,string dappName) stopInEmergency public  returns (bool) {\n        assert(dappRegistry[msg.sender].provider == 0x0);\n        assert(msg.sender != tx.origin);\n        dappRegistry[msg.sender].provider=tx.origin;\n        dappRegistry[msg.sender].dappPrice=dappPrice;\n        dappRegistry[msg.sender].dappName=dappName;\n        Register(msg.sender,tx.origin,dappPrice,dappName);\n        return true;\n    }\n\n    function getDapp(address dapp) constant public returns (string dappName, uint256 dappPrice, address provider) {\n        return (\n        dappRegistry[dapp].dappName,\n        dappRegistry[dapp].dappPrice,\n        dappRegistry[dapp].provider\n        );\n    }\n\n    function getProvider(address dapp) constant public returns (address provider) {\n        return dappRegistry[dapp].provider;\n    }\n\n    function getDappPrice(address dapp) constant public returns (uint256 dappPrice) {\n        return dappRegistry[dapp].dappPrice;\n    }\n\n    function getDappName(address dapp) constant public returns (string dappName) {\n        return dappRegistry[dapp].dappName;\n    }\n\n    function getWork(bytes32 submitTxHash) constant public returns (uint256 timestamp, IexecLib.StatusEnum status, string stdout, string stderr, string uri) {\n        return (\n        workRegistry[submitTxHash].timestamp,\n        workRegistry[submitTxHash].status,\n        workRegistry[submitTxHash].stdout,\n        workRegistry[submitTxHash].stderr,\n        workRegistry[submitTxHash].uri\n        );\n    }\n\n    function getWorkTimestamp(bytes32 submitTxHash) constant public returns (uint256 timestamp) {\n        return workRegistry[submitTxHash].timestamp;\n    }\n\n    function getWorkStatus(bytes32 submitTxHash) constant public returns (IexecLib.StatusEnum status) {\n        return workRegistry[submitTxHash].status;\n    }\n\n    function getWorkStdout(bytes32 submitTxHash) constant public returns (string stdout) {\n        return workRegistry[submitTxHash].stdout;\n    }\n\n    function getWorkStderr(bytes32 submitTxHash) constant public returns (string stderr) {\n        return workRegistry[submitTxHash].stderr;\n    }\n\n    function getWorkUri(bytes32 submitTxHash) constant public returns (string uri) {\n        return workRegistry[submitTxHash].uri;\n    }\n\n    function submit(string param) onlyRegistered  checkCallbackPrice stopInEmergency public payable returns (bool){\n        uint256 dappPrice=dappRegistry[msg.sender].dappPrice;\n        if(dappPrice > 0 ){\n            //transfert user RLC deplosit to iexecOracleEscrow\n            require(iexecOracleEscrow.rlcDeposit(dappPrice));\n        }\n        owner.transfer(msg.value);\n        Submit(tx.origin, msg.sender,dappRegistry[msg.sender].provider, param);\n        return true;\n    }\n\n    function submitCallback(bytes32 submitTxHash, address user, address dapp, IexecLib.StatusEnum status, string stdout, string stderr, string uri) stopInEmergency public {\n        assert(msg.sender == owner);\n        //set StatusEnum.UNSET forbidden\n        require(status != IexecLib.StatusEnum.UNSET);\n        //only one call is consider if 2 bridges are up thanks to the following check\n        require(workRegistry[submitTxHash].status == IexecLib.StatusEnum.UNSET);\n        workRegistry[submitTxHash].timestamp=now;\n        workRegistry[submitTxHash].status = status;\n        workRegistry[submitTxHash].stdout = stdout;\n        workRegistry[submitTxHash].stderr = stderr;\n        workRegistry[submitTxHash].uri = uri;\n        SubmitCallback(submitTxHash,user,stdout,uri);\n        iexecSubmitCallback(submitTxHash,dapp,user,stdout,uri);\n        uint256 dappPrice=dappRegistry[dapp].dappPrice;\n        if(dappPrice > 0 ){\n            if(status == IexecLib.StatusEnum.COMPLETED){\n                require(iexecOracleEscrow.rlcPayment(dappRegistry[dapp].provider,dappPrice));\n            }\n            if(status == IexecLib.StatusEnum.ERROR){\n                require(iexecOracleEscrow.rlcPayment(user,dappPrice));\n            }\n        }\n    }\n\n    function changeCallbackPrice(uint256 _callbackPrice) public {\n        assert(msg.sender == owner);\n        callbackPrice=_callbackPrice;\n    }\n\n    function iexecSubmitCallback(bytes32 submitTxHash, address dapp, address user, string stdout, string uri) internal {\n        IexecOracleAPI iexecOracleAPI = IexecOracleAPI(dapp);\n        require(iexecOracleAPI.iexecSubmitCallback(submitTxHash,user,stdout,uri));\n    }\n\n    /**\n    * transfer to owner any tokens send by mistake on this contracts\n    */\n    function emergencyERC20Drain(address rlcTokenAddress, uint amount) public onlyOwner {\n        RLC rlcToken = RLC(rlcTokenAddress);\n        rlcToken.transfer(owner, amount);\n    }\n\n}\n",
+  "sourcePath": "iexec-oracle-contract/contracts/IexecOracle.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "iexec-oracle-contract/contracts/IexecOracle.sol",
+      "exportedSymbols": {
+        "IexecOracle": [
+          696
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".18"
+          ]
+        },
+        "id": 34,
+        "name": "PragmaDirective",
+        "src": "0:24:2"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 795,
+          "absolutePath": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+          "file": "./IexecOracleAPI.sol",
+          "scope": 697,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 35,
+        "name": "ImportDirective",
+        "src": "34:30:2"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 939,
+          "absolutePath": "iexec-oracle-contract/contracts/IexecOracleEscrow.sol",
+          "file": "./IexecOracleEscrow.sol",
+          "scope": 697,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 36,
+        "name": "ImportDirective",
+        "src": "65:33:2"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 33,
+          "absolutePath": "iexec-oracle-contract/contracts/IexecLib.sol",
+          "file": "./IexecLib.sol",
+          "scope": 697,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 37,
+        "name": "ImportDirective",
+        "src": "99:24:2"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1046,
+          "absolutePath": "rlc-token/contracts/Ownable.sol",
+          "file": "rlc-token/contracts/Ownable.sol",
+          "scope": 697,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 38,
+        "name": "ImportDirective",
+        "src": "124:41:2"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1375,
+          "absolutePath": "rlc-token/contracts/RLC.sol",
+          "file": "rlc-token/contracts/RLC.sol",
+          "scope": 697,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 39,
+        "name": "ImportDirective",
+        "src": "166:37:2"
+      },
+      {
+        "attributes": {
+          "contractDependencies": [
+            1045
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            696,
+            1045
+          ],
+          "name": "IexecOracle",
+          "scope": 697
+        },
+        "children": [
+          {
+            "attributes": {
+              "arguments": [
+                null
+              ]
+            },
+            "children": [
+              {
+                "attributes": {
+                  "contractScope": null,
+                  "name": "Ownable",
+                  "referencedDeclaration": 1045,
+                  "type": "contract Ownable"
+                },
+                "id": 40,
+                "name": "UserDefinedTypeName",
+                "src": "230:7:2"
+              }
+            ],
+            "id": 41,
+            "name": "InheritanceSpecifier",
+            "src": "230:7:2"
+          },
+          {
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+                                }
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+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 794,
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+                                    }
+                                  ],
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+                                  "type": "function (bytes32,address,string memory,string memory) external returns (bool)"
+                                },
+                                "children": [
+                                  {
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+                                      "argumentTypes": null,
+                                      "overloadedDeclarations": [
+                                        null
+                                      ],
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+                                      "type": "contract IexecOracleAPI",
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+                                    },
+                                    "id": 662,
+                                    "name": "Identifier",
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+                                  }
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+                                "name": "Identifier",
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+                                  "argumentTypes": null,
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+                                    null
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+                                  "type": "address",
+                                  "value": "user"
+                                },
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+                                "name": "Identifier",
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+                              },
+                              {
+                                "attributes": {
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+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
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+                                  "type": "string memory",
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+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
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+                                  "type": "string memory",
+                                  "value": "uri"
+                                },
+                                "id": 667,
+                                "name": "Identifier",
+                                "src": "6539:3:2"
+                              }
+                            ],
+                            "id": 668,
+                            "name": "FunctionCall",
+                            "src": "6479:64:2"
+                          }
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+                      }
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+          },
+          {
+            "attributes": {
+              "constant": false,
+              "implemented": true,
+              "isConstructor": false,
+              "name": "emergencyERC20Drain",
+              "payable": false,
+              "scope": 696,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "rlcTokenAddress",
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+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
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+                  },
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+                      "name": "amount",
+                      "scope": 695,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
+                        "id": 675,
+                        "name": "ElementaryTypeName",
+                        "src": "6695:4:2"
+                      }
+                    ],
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+                  ]
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+                  }
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+                        682
+                      ]
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "constant": false,
+                          "name": "rlcToken",
+                          "scope": 695,
+                          "stateVariable": false,
+                          "storageLocation": "default",
+                          "type": "contract RLC",
+                          "value": null,
+                          "visibility": "internal"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "contractScope": null,
+                              "name": "RLC",
+                              "referencedDeclaration": 1374,
+                              "type": "contract RLC"
+                            },
+                            "id": 681,
+                            "name": "UserDefinedTypeName",
+                            "src": "6735:3:2"
+                          }
+                        ],
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+                        "name": "VariableDeclaration",
+                        "src": "6735:12:2"
+                      },
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "isStructConstructorCall": false,
+                          "lValueRequested": false,
+                          "names": [
+                            null
+                          ],
+                          "type": "contract RLC",
+                          "type_conversion": true
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": [
+                                {
+                                  "typeIdentifier": "t_address",
+                                  "typeString": "address"
+                                }
+                              ],
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1374,
+                              "type": "type(contract RLC)",
+                              "value": "RLC"
+                            },
+                            "id": 683,
+                            "name": "Identifier",
+                            "src": "6750:3:2"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 674,
+                              "type": "address",
+                              "value": "rlcTokenAddress"
+                            },
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+                            "name": "Identifier",
+                            "src": "6754:15:2"
+                          }
+                        ],
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+                        "name": "FunctionCall",
+                        "src": "6750:20:2"
+                      }
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+                    "name": "VariableDeclarationStatement",
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+                  },
+                  {
+                    "children": [
+                      {
+                        "attributes": {
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+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "isStructConstructorCall": false,
+                          "lValueRequested": false,
+                          "names": [
+                            null
+                          ],
+                          "type": "bool",
+                          "type_conversion": false
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": [
+                                {
+                                  "typeIdentifier": "t_address",
+                                  "typeString": "address"
+                                },
+                                {
+                                  "typeIdentifier": "t_uint256",
+                                  "typeString": "uint256"
+                                }
+                              ],
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "member_name": "transfer",
+                              "referencedDeclaration": 1221,
+                              "type": "function (address,uint256) external returns (bool)"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 682,
+                                  "type": "contract RLC",
+                                  "value": "rlcToken"
+                                },
+                                "id": 687,
+                                "name": "Identifier",
+                                "src": "6780:8:2"
+                              }
+                            ],
+                            "id": 689,
+                            "name": "MemberAccess",
+                            "src": "6780:17:2"
+                          },
+                          {
+                            "attributes": {
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+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1008,
+                              "type": "address",
+                              "value": "owner"
+                            },
+                            "id": 690,
+                            "name": "Identifier",
+                            "src": "6798:5:2"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 676,
+                              "type": "uint256",
+                              "value": "amount"
+                            },
+                            "id": 691,
+                            "name": "Identifier",
+                            "src": "6805:6:2"
+                          }
+                        ],
+                        "id": 692,
+                        "name": "FunctionCall",
+                        "src": "6780:32:2"
+                      }
+                    ],
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+                    "name": "ExpressionStatement",
+                    "src": "6780:32:2"
+                  }
+                ],
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+                "name": "Block",
+                "src": "6725:94:2"
+              }
+            ],
+            "id": 695,
+            "name": "FunctionDefinition",
+            "src": "6641:178:2"
+          }
+        ],
+        "id": 696,
+        "name": "ContractDefinition",
+        "src": "206:6616:2"
+      }
+    ],
+    "id": 697,
+    "name": "SourceUnit",
+    "src": "0:6823:2"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.990Z"
+}
\ No newline at end of file
diff --git a/build/contracts/IexecOracleAPI.json b/build/contracts/IexecOracleAPI.json
new file mode 100644
index 0000000..5085566
--- /dev/null
+++ b/build/contracts/IexecOracleAPI.json
@@ -0,0 +1,1522 @@
+{
+  "contractName": "IexecOracleAPI",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "iexecSubmitCallback",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "param",
+          "type": "string"
+        }
+      ],
+      "name": "iexecSubmit",
+      "outputs": [],
+      "payable": true,
+      "stateMutability": "payable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_iexecOracleAddress",
+          "type": "address"
+        },
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        },
+        {
+          "name": "dappName",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "indexed": true,
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "IexecSubmitCallback",
+      "type": "event"
+    }
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+  "source": "pragma solidity ^0.4.18;\n//v1.1.1\nimport \"./IexecOracle.sol\";\nimport './IexecLib.sol';\n\ncontract IexecOracleAPI{\n\n\n    address iexecOracleAddress;\n    event IexecSubmitCallback(bytes32 submitTxHash, address indexed user, string stdout, string uri);\n\n    //constructor\n    function IexecOracleAPI(address _iexecOracleAddress, uint256 dappPrice, string dappName) public {\n        iexecOracleAddress=_iexecOracleAddress;\n        IexecOracle iexecOracle = IexecOracle(iexecOracleAddress);\n        require(iexecOracle.registerDappAndProvider(dappPrice,dappName));\n    }\n\n    function iexecSubmit(string param) payable public {\n        IexecOracle iexecOracle = IexecOracle(iexecOracleAddress);\n        require(iexecOracle.submit.value(msg.value)(param));\n    }\n\n    function iexecSubmitCallback(bytes32 submitTxHash, address user, string stdout, string uri) public returns  (bool){\n        require(msg.sender == iexecOracleAddress);\n        IexecSubmitCallback(submitTxHash,user,stdout,uri);\n        return true;\n    }\n}\n",
+  "sourcePath": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+  "ast": {
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+      "exportedSymbols": {
+        "IexecOracleAPI": [
+          794
+        ]
+      }
+    },
+    "children": [
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+            "^",
+            "0.4",
+            ".18"
+          ]
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+        "id": 698,
+        "name": "PragmaDirective",
+        "src": "0:24:3"
+      },
+      {
+        "attributes": {
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+          "absolutePath": "iexec-oracle-contract/contracts/IexecOracle.sol",
+          "file": "./IexecOracle.sol",
+          "scope": 795,
+          "symbolAliases": [
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+        "name": "ImportDirective",
+        "src": "34:27:3"
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+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
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+          "name": "IexecOracleAPI",
+          "scope": 795
+        },
+        "children": [
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+              "name": "iexecOracleAddress",
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+              "type": "address",
+              "value": null,
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+                "src": "875:138:3"
+              }
+            ],
+            "id": 793,
+            "name": "FunctionDefinition",
+            "src": "761:252:3"
+          }
+        ],
+        "id": 794,
+        "name": "ContractDefinition",
+        "src": "88:927:3"
+      }
+    ],
+    "id": 795,
+    "name": "SourceUnit",
+    "src": "0:1016:3"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.992Z"
+}
\ No newline at end of file
diff --git a/build/contracts/IexecOracleEscrow.json b/build/contracts/IexecOracleEscrow.json
new file mode 100644
index 0000000..f3fd061
--- /dev/null
+++ b/build/contracts/IexecOracleEscrow.json
@@ -0,0 +1,2125 @@
+{
+  "contractName": "IexecOracleEscrow",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "targets",
+          "type": "address[]"
+        },
+        {
+          "name": "isRegistered",
+          "type": "bool"
+        }
+      ],
+      "name": "changeIexecOracleRegistrationStatuses",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "rlcToken",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "iexecOracleRegistered",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "target",
+          "type": "address"
+        },
+        {
+          "name": "isRegistered",
+          "type": "bool"
+        }
+      ],
+      "name": "changeIexecOracleRegistrationStatus",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "target",
+          "type": "address"
+        }
+      ],
+      "name": "isIexecOracleRegistered",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        }
+      ],
+      "name": "rlcDeposit",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "beneficiary",
+          "type": "address"
+        },
+        {
+          "name": "dappPrice",
+          "type": "uint256"
+        }
+      ],
+      "name": "rlcPayment",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_tokenAddress",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    }
+  ],
+  "bytecode": 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+  "source": "pragma solidity ^0.4.18;\n//v1.1.1\nimport \"rlc-token/contracts/RLC.sol\";\nimport \"rlc-token/contracts/Ownable.sol\";\n\n\ncontract IexecOracleEscrow is Ownable {\n\n    RLC public rlcToken;\n\n    mapping(address=>bool) public iexecOracleRegistered;\n\n    modifier onlyOwnerOrOracleRegistered(){\n        assert( iexecOracleRegistered[msg.sender] ||  msg.sender == owner );\n        _;\n    }\n\n    //constructor\n    function IexecOracleEscrow(address _tokenAddress) public {\n        rlcToken = RLC(_tokenAddress);\n    }\n\n    function changeIexecOracleRegistrationStatus(address target, bool isRegistered) public onlyOwner {\n        iexecOracleRegistered[target] = isRegistered;\n    }\n\n    function changeIexecOracleRegistrationStatuses(address[] targets, bool isRegistered) public onlyOwner {\n        for (uint i = 0; i < targets.length; i++) {\n            changeIexecOracleRegistrationStatus(targets[i], isRegistered);\n        }\n    }\n\n    function rlcDeposit(uint256 dappPrice) public onlyOwnerOrOracleRegistered returns (bool){\n        require(rlcToken.transferFrom(tx.origin,this,dappPrice));\n        return true;\n    }\n\n    function rlcPayment(address beneficiary ,uint256 dappPrice) public onlyOwnerOrOracleRegistered returns (bool){\n        require(rlcToken.transfer(beneficiary,dappPrice));\n        return true;\n    }\n\n    function isIexecOracleRegistered(address target) constant public returns (bool){\n      return iexecOracleRegistered[target];\n    }\n\n}\n",
+  "sourcePath": "iexec-oracle-contract/contracts/IexecOracleEscrow.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "iexec-oracle-contract/contracts/IexecOracleEscrow.sol",
+      "exportedSymbols": {
+        "IexecOracleEscrow": [
+          938
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".18"
+          ]
+        },
+        "id": 796,
+        "name": "PragmaDirective",
+        "src": "0:24:4"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1375,
+          "absolutePath": "rlc-token/contracts/RLC.sol",
+          "file": "rlc-token/contracts/RLC.sol",
+          "scope": 939,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 797,
+        "name": "ImportDirective",
+        "src": "34:37:4"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1046,
+          "absolutePath": "rlc-token/contracts/Ownable.sol",
+          "file": "rlc-token/contracts/Ownable.sol",
+          "scope": 939,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 798,
+        "name": "ImportDirective",
+        "src": "72:41:4"
+      },
+      {
+        "attributes": {
+          "contractDependencies": [
+            1045
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            938,
+            1045
+          ],
+          "name": "IexecOracleEscrow",
+          "scope": 939
+        },
+        "children": [
+          {
+            "attributes": {
+              "arguments": [
+                null
+              ]
+            },
+            "children": [
+              {
+                "attributes": {
+                  "contractScope": null,
+                  "name": "Ownable",
+                  "referencedDeclaration": 1045,
+                  "type": "contract Ownable"
+                },
+                "id": 799,
+                "name": "UserDefinedTypeName",
+                "src": "146:7:4"
+              }
+            ],
+            "id": 800,
+            "name": "InheritanceSpecifier",
+            "src": "146:7:4"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "name": "rlcToken",
+              "scope": 938,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "contract RLC",
+              "value": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "contractScope": null,
+                  "name": "RLC",
+                  "referencedDeclaration": 1374,
+                  "type": "contract RLC"
+                },
+                "id": 801,
+                "name": "UserDefinedTypeName",
+                "src": "161:3:4"
+              }
+            ],
+            "id": 802,
+            "name": "VariableDeclaration",
+            "src": "161:19:4"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "name": "iexecOracleRegistered",
+              "scope": 938,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "mapping(address => bool)",
+              "value": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "type": "mapping(address => bool)"
+                },
+                "children": [
+                  {
+                    "attributes": {
+                      "name": "address",
+                      "type": "address"
+                    },
+                    "id": 803,
+                    "name": "ElementaryTypeName",
+                    "src": "195:7:4"
+                  },
+                  {
+                    "attributes": {
+                      "name": "bool",
+                      "type": "bool"
+                    },
+                    "id": 804,
+                    "name": "ElementaryTypeName",
+                    "src": "204:4:4"
+                  }
+                ],
+                "id": 805,
+                "name": "Mapping",
+                "src": "187:22:4"
+              }
+            ],
+            "id": 806,
+            "name": "VariableDeclaration",
+            "src": "187:51:4"
+          },
+          {
+            "attributes": {
+              "name": "onlyOwnerOrOracleRegistered",
+              "visibility": "internal"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 807,
+                "name": "ParameterList",
+                "src": "281:2:4"
+              },
+              {
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+          }
+        ],
+        "id": 938,
+        "name": "ContractDefinition",
+        "src": "116:1334:4"
+      }
+    ],
+    "id": 939,
+    "name": "SourceUnit",
+    "src": "0:1451:4"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.992Z"
+}
\ No newline at end of file
diff --git a/build/contracts/MyContract.json b/build/contracts/MyContract.json
new file mode 100644
index 0000000..eda0a85
--- /dev/null
+++ b/build/contracts/MyContract.json
@@ -0,0 +1,436 @@
+{
+  "contractName": "MyContract",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "iexecSubmitCallback",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "DAPP_PRICE",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "param",
+          "type": "string"
+        }
+      ],
+      "name": "iexecSubmit",
+      "outputs": [],
+      "payable": true,
+      "stateMutability": "payable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "DAPP_NAME",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_iexecOracleAddress",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "submitTxHash",
+          "type": "bytes32"
+        },
+        {
+          "indexed": true,
+          "name": "user",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "stdout",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "uri",
+          "type": "string"
+        }
+      ],
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+      "type": "event"
+    }
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+  "source": "pragma solidity ^0.4.11;\nimport \"iexec-oracle-contract/contracts/IexecOracleAPI.sol\";\ncontract MyContract is IexecOracleAPI{\n\n    uint public constant DAPP_PRICE = 0;\n    string public constant DAPP_NAME = \"init\";\n    \n    function MyContract (address _iexecOracleAddress) IexecOracleAPI(_iexecOracleAddress,DAPP_PRICE,DAPP_NAME){\n\n    }\n\n}\n",
+  "sourcePath": "/home/vagrant/iexecdev/iexec-init/contracts/MyContract.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "/home/vagrant/iexecdev/iexec-init/contracts/MyContract.sol",
+      "exportedSymbols": {
+        "MyContract": [
+          22
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".11"
+          ]
+        },
+        "id": 1,
+        "name": "PragmaDirective",
+        "src": "0:24:0"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 795,
+          "absolutePath": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+          "file": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+          "scope": 23,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 2,
+        "name": "ImportDirective",
+        "src": "25:60:0"
+      },
+      {
+        "attributes": {
+          "contractDependencies": [
+            794
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            22,
+            794
+          ],
+          "name": "MyContract",
+          "scope": 23
+        },
+        "children": [
+          {
+            "attributes": {
+              "arguments": [
+                null
+              ]
+            },
+            "children": [
+              {
+                "attributes": {
+                  "contractScope": null,
+                  "name": "IexecOracleAPI",
+                  "referencedDeclaration": 794,
+                  "type": "contract IexecOracleAPI"
+                },
+                "id": 3,
+                "name": "UserDefinedTypeName",
+                "src": "109:14:0"
+              }
+            ],
+            "id": 4,
+            "name": "InheritanceSpecifier",
+            "src": "109:14:0"
+          },
+          {
+            "attributes": {
+              "constant": true,
+              "name": "DAPP_PRICE",
+              "scope": 22,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "uint256",
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "name": "uint",
+                  "type": "uint256"
+                },
+                "id": 5,
+                "name": "ElementaryTypeName",
+                "src": "130:4:0"
+              },
+              {
+                "attributes": {
+                  "argumentTypes": null,
+                  "hexvalue": "30",
+                  "isConstant": false,
+                  "isLValue": false,
+                  "isPure": true,
+                  "lValueRequested": false,
+                  "subdenomination": null,
+                  "token": "number",
+                  "type": "int_const 0",
+                  "value": "0"
+                },
+                "id": 6,
+                "name": "Literal",
+                "src": "164:1:0"
+              }
+            ],
+            "id": 7,
+            "name": "VariableDeclaration",
+            "src": "130:35:0"
+          },
+          {
+            "attributes": {
+              "constant": true,
+              "name": "DAPP_NAME",
+              "scope": 22,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "string memory",
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "name": "string",
+                  "type": "string storage pointer"
+                },
+                "id": 8,
+                "name": "ElementaryTypeName",
+                "src": "171:6:0"
+              },
+              {
+                "attributes": {
+                  "argumentTypes": null,
+                  "hexvalue": "696e6974",
+                  "isConstant": false,
+                  "isLValue": false,
+                  "isPure": true,
+                  "lValueRequested": false,
+                  "subdenomination": null,
+                  "token": "string",
+                  "type": "literal_string \"init\"",
+                  "value": "init"
+                },
+                "id": 9,
+                "name": "Literal",
+                "src": "206:6:0"
+              }
+            ],
+            "id": 10,
+            "name": "VariableDeclaration",
+            "src": "171:41:0"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "implemented": true,
+              "isConstructor": true,
+              "name": "MyContract",
+              "payable": false,
+              "scope": 22,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "_iexecOracleAddress",
+                      "scope": 21,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 11,
+                        "name": "ElementaryTypeName",
+                        "src": "244:7:0"
+                      }
+                    ],
+                    "id": 12,
+                    "name": "VariableDeclaration",
+                    "src": "244:27:0"
+                  }
+                ],
+                "id": 13,
+                "name": "ParameterList",
+                "src": "243:29:0"
+              },
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 19,
+                "name": "ParameterList",
+                "src": "329:0:0"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "argumentTypes": null,
+                      "overloadedDeclarations": [
+                        null
+                      ],
+                      "referencedDeclaration": 794,
+                      "type": "type(contract IexecOracleAPI)",
+                      "value": "IexecOracleAPI"
+                    },
+                    "id": 14,
+                    "name": "Identifier",
+                    "src": "273:14:0"
+                  },
+                  {
+                    "attributes": {
+                      "argumentTypes": null,
+                      "overloadedDeclarations": [
+                        null
+                      ],
+                      "referencedDeclaration": 12,
+                      "type": "address",
+                      "value": "_iexecOracleAddress"
+                    },
+                    "id": 15,
+                    "name": "Identifier",
+                    "src": "288:19:0"
+                  },
+                  {
+                    "attributes": {
+                      "argumentTypes": null,
+                      "overloadedDeclarations": [
+                        null
+                      ],
+                      "referencedDeclaration": 7,
+                      "type": "uint256",
+                      "value": "DAPP_PRICE"
+                    },
+                    "id": 16,
+                    "name": "Identifier",
+                    "src": "308:10:0"
+                  },
+                  {
+                    "attributes": {
+                      "argumentTypes": null,
+                      "overloadedDeclarations": [
+                        null
+                      ],
+                      "referencedDeclaration": 10,
+                      "type": "string memory",
+                      "value": "DAPP_NAME"
+                    },
+                    "id": 17,
+                    "name": "Identifier",
+                    "src": "319:9:0"
+                  }
+                ],
+                "id": 18,
+                "name": "ModifierInvocation",
+                "src": "273:56:0"
+              },
+              {
+                "attributes": {
+                  "statements": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 20,
+                "name": "Block",
+                "src": "329:8:0"
+              }
+            ],
+            "id": 21,
+            "name": "FunctionDefinition",
+            "src": "223:114:0"
+          }
+        ],
+        "id": 22,
+        "name": "ContractDefinition",
+        "src": "86:254:0"
+      }
+    ],
+    "id": 23,
+    "name": "SourceUnit",
+    "src": "0:341:0"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2017-12-20T16:10:37.901Z"
+}
\ No newline at end of file
diff --git a/build/contracts/Ownable.json b/build/contracts/Ownable.json
new file mode 100644
index 0000000..e5fe558
--- /dev/null
+++ b/build/contracts/Ownable.json
@@ -0,0 +1,602 @@
+{
+  "contractName": "Ownable",
+  "abi": [
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    }
+  ],
+  "bytecode": "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",
+  "deployedBytecode": "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",
+  "sourceMap": "25:279:6:-;;;71:48;;;;;;;;104:10;96:5;;:18;;;;;;;;;;;;;;;;;;25:279;;;;;;",
+  "deployedSourceMap": "25:279:6:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;46:20;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;191:110;;;;;;;;;;;;;;;;;;;;;;;;;;;;46:20;;;;;;;;;;;;;:::o;191:110::-;168:5;;;;;;;;;;;154:19;;:10;:19;;;150:32;;;276:1;256:22;;:8;:22;;;;252:44;;;288:8;280:5;;:16;;;;;;;;;;;;;;;;;;252:44;150:32;191:110;:::o",
+  "source": "pragma solidity ^0.4.8;\n\ncontract Ownable {\n  address public owner;\n\n  function Ownable() {\n    owner = msg.sender;\n  }\n\n  modifier onlyOwner() {\n    if (msg.sender == owner)\n      _;\n  }\n\n  function transferOwnership(address newOwner) onlyOwner {\n    if (newOwner != address(0)) owner = newOwner;\n  }\n\n}",
+  "sourcePath": "rlc-token/contracts/Ownable.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "rlc-token/contracts/Ownable.sol",
+      "exportedSymbols": {
+        "Ownable": [
+          1045
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".8"
+          ]
+        },
+        "id": 1006,
+        "name": "PragmaDirective",
+        "src": "0:23:6"
+      },
+      {
+        "attributes": {
+          "baseContracts": [
+            null
+          ],
+          "contractDependencies": [
+            null
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            1045
+          ],
+          "name": "Ownable",
+          "scope": 1046
+        },
+        "children": [
+          {
+            "attributes": {
+              "constant": false,
+              "name": "owner",
+              "scope": 1045,
+              "stateVariable": true,
+              "storageLocation": "default",
+              "type": "address",
+              "value": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "name": "address",
+                  "type": "address"
+                },
+                "id": 1007,
+                "name": "ElementaryTypeName",
+                "src": "46:7:6"
+              }
+            ],
+            "id": 1008,
+            "name": "VariableDeclaration",
+            "src": "46:20:6"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "implemented": true,
+              "isConstructor": true,
+              "modifiers": [
+                null
+              ],
+              "name": "Ownable",
+              "payable": false,
+              "scope": 1045,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1009,
+                "name": "ParameterList",
+                "src": "87:2:6"
+              },
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1010,
+                "name": "ParameterList",
+                "src": "90:0:6"
+              },
+              {
+                "children": [
+                  {
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "operator": "=",
+                          "type": "address"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1008,
+                              "type": "address",
+                              "value": "owner"
+                            },
+                            "id": 1011,
+                            "name": "Identifier",
+                            "src": "96:5:6"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "member_name": "sender",
+                              "referencedDeclaration": null,
+                              "type": "address"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1596,
+                                  "type": "msg",
+                                  "value": "msg"
+                                },
+                                "id": 1012,
+                                "name": "Identifier",
+                                "src": "104:3:6"
+                              }
+                            ],
+                            "id": 1013,
+                            "name": "MemberAccess",
+                            "src": "104:10:6"
+                          }
+                        ],
+                        "id": 1014,
+                        "name": "Assignment",
+                        "src": "96:18:6"
+                      }
+                    ],
+                    "id": 1015,
+                    "name": "ExpressionStatement",
+                    "src": "96:18:6"
+                  }
+                ],
+                "id": 1016,
+                "name": "Block",
+                "src": "90:29:6"
+              }
+            ],
+            "id": 1017,
+            "name": "FunctionDefinition",
+            "src": "71:48:6"
+          },
+          {
+            "attributes": {
+              "name": "onlyOwner",
+              "visibility": "internal"
+            },
+            "children": [
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1018,
+                "name": "ParameterList",
+                "src": "141:2:6"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "falseBody": null
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "commonType": {
+                            "typeIdentifier": "t_address",
+                            "typeString": "address"
+                          },
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "operator": "==",
+                          "type": "bool"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "member_name": "sender",
+                              "referencedDeclaration": null,
+                              "type": "address"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1596,
+                                  "type": "msg",
+                                  "value": "msg"
+                                },
+                                "id": 1019,
+                                "name": "Identifier",
+                                "src": "154:3:6"
+                              }
+                            ],
+                            "id": 1020,
+                            "name": "MemberAccess",
+                            "src": "154:10:6"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1008,
+                              "type": "address",
+                              "value": "owner"
+                            },
+                            "id": 1021,
+                            "name": "Identifier",
+                            "src": "168:5:6"
+                          }
+                        ],
+                        "id": 1022,
+                        "name": "BinaryOperation",
+                        "src": "154:19:6"
+                      },
+                      {
+                        "id": 1023,
+                        "name": "PlaceholderStatement",
+                        "src": "181:1:6"
+                      }
+                    ],
+                    "id": 1024,
+                    "name": "IfStatement",
+                    "src": "150:32:6"
+                  }
+                ],
+                "id": 1025,
+                "name": "Block",
+                "src": "144:43:6"
+              }
+            ],
+            "id": 1026,
+            "name": "ModifierDefinition",
+            "src": "123:64:6"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "implemented": true,
+              "isConstructor": false,
+              "name": "transferOwnership",
+              "payable": false,
+              "scope": 1045,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "newOwner",
+                      "scope": 1044,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 1027,
+                        "name": "ElementaryTypeName",
+                        "src": "218:7:6"
+                      }
+                    ],
+                    "id": 1028,
+                    "name": "VariableDeclaration",
+                    "src": "218:16:6"
+                  }
+                ],
+                "id": 1029,
+                "name": "ParameterList",
+                "src": "217:18:6"
+              },
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1032,
+                "name": "ParameterList",
+                "src": "246:0:6"
+              },
+              {
+                "attributes": {
+                  "arguments": [
+                    null
+                  ]
+                },
+                "children": [
+                  {
+                    "attributes": {
+                      "argumentTypes": null,
+                      "overloadedDeclarations": [
+                        null
+                      ],
+                      "referencedDeclaration": 1026,
+                      "type": "modifier ()",
+                      "value": "onlyOwner"
+                    },
+                    "id": 1030,
+                    "name": "Identifier",
+                    "src": "236:9:6"
+                  }
+                ],
+                "id": 1031,
+                "name": "ModifierInvocation",
+                "src": "236:9:6"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "falseBody": null
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "commonType": {
+                            "typeIdentifier": "t_address",
+                            "typeString": "address"
+                          },
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "operator": "!=",
+                          "type": "bool"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1028,
+                              "type": "address",
+                              "value": "newOwner"
+                            },
+                            "id": 1033,
+                            "name": "Identifier",
+                            "src": "256:8:6"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": true,
+                              "isStructConstructorCall": false,
+                              "lValueRequested": false,
+                              "names": [
+                                null
+                              ],
+                              "type": "address",
+                              "type_conversion": true
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": [
+                                    {
+                                      "typeIdentifier": "t_rational_0_by_1",
+                                      "typeString": "int_const 0"
+                                    }
+                                  ],
+                                  "isConstant": false,
+                                  "isLValue": false,
+                                  "isPure": true,
+                                  "lValueRequested": false,
+                                  "type": "type(address)",
+                                  "value": "address"
+                                },
+                                "id": 1034,
+                                "name": "ElementaryTypeNameExpression",
+                                "src": "268:7:6"
+                              },
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "hexvalue": "30",
+                                  "isConstant": false,
+                                  "isLValue": false,
+                                  "isPure": true,
+                                  "lValueRequested": false,
+                                  "subdenomination": null,
+                                  "token": "number",
+                                  "type": "int_const 0",
+                                  "value": "0"
+                                },
+                                "id": 1035,
+                                "name": "Literal",
+                                "src": "276:1:6"
+                              }
+                            ],
+                            "id": 1036,
+                            "name": "FunctionCall",
+                            "src": "268:10:6"
+                          }
+                        ],
+                        "id": 1037,
+                        "name": "BinaryOperation",
+                        "src": "256:22:6"
+                      },
+                      {
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "operator": "=",
+                              "type": "address"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1008,
+                                  "type": "address",
+                                  "value": "owner"
+                                },
+                                "id": 1038,
+                                "name": "Identifier",
+                                "src": "280:5:6"
+                              },
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1028,
+                                  "type": "address",
+                                  "value": "newOwner"
+                                },
+                                "id": 1039,
+                                "name": "Identifier",
+                                "src": "288:8:6"
+                              }
+                            ],
+                            "id": 1040,
+                            "name": "Assignment",
+                            "src": "280:16:6"
+                          }
+                        ],
+                        "id": 1041,
+                        "name": "ExpressionStatement",
+                        "src": "280:16:6"
+                      }
+                    ],
+                    "id": 1042,
+                    "name": "IfStatement",
+                    "src": "252:44:6"
+                  }
+                ],
+                "id": 1043,
+                "name": "Block",
+                "src": "246:55:6"
+              }
+            ],
+            "id": 1044,
+            "name": "FunctionDefinition",
+            "src": "191:110:6"
+          }
+        ],
+        "id": 1045,
+        "name": "ContractDefinition",
+        "src": "25:279:6"
+      }
+    ],
+    "id": 1046,
+    "name": "SourceUnit",
+    "src": "0:304:6"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.993Z"
+}
\ No newline at end of file
diff --git a/build/contracts/RLC.json b/build/contracts/RLC.json
new file mode 100644
index 0000000..66b6660
--- /dev/null
+++ b/build/contracts/RLC.json
@@ -0,0 +1,4899 @@
+{
+  "contractName": "RLC",
+  "abi": [
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "initialSupply",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "burn",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "version",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "name": "balance",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "unlock",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        },
+        {
+          "name": "_extraData",
+          "type": "bytes"
+        }
+      ],
+      "name": "approveAndCall",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "locked",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "name": "_spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "name": "remaining",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    }
+  ],
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+  "source": "pragma solidity ^0.4.8;\n\nimport \"./Ownable.sol\";\nimport \"./SafeMath.sol\";\nimport \"./ERC20.sol\";\nimport \"./TokenSpender.sol\";\ncontract RLC is ERC20, SafeMath, Ownable {\n\n    /* Public variables of the token */\n  string public name;       //fancy name\n  string public symbol;\n  uint8 public decimals;    //How many decimals to show.\n  string public version = 'v0.1'; \n  uint public initialSupply;\n  uint public totalSupply;\n  bool public locked;\n  //uint public unlockBlock;\n\n  mapping(address => uint) balances;\n  mapping (address => mapping (address => uint)) allowed;\n\n  // lock transfer during the ICO\n  modifier onlyUnlocked() {\n    if (msg.sender != owner && locked) throw;\n    _;\n  }\n\n  /*\n   *  The RLC Token created with the time at which the crowdsale end\n   */\n\n  function RLC() {\n    // lock the transfer function during the crowdsale\n    locked = true;\n    //unlockBlock=  now + 45 days; // (testnet) - for mainnet put the block number\n\n    initialSupply = 87000000000000000;\n    totalSupply = initialSupply;\n    balances[msg.sender] = initialSupply;// Give the creator all initial tokens                    \n    name = 'iEx.ec Network Token';        // Set the name for display purposes     \n    symbol = 'RLC';                       // Set the symbol for display purposes  \n    decimals = 9;                        // Amount of decimals for display purposes\n  }\n\n  function unlock() onlyOwner {\n    locked = false;\n  }\n\n  function burn(uint256 _value) returns (bool){\n    balances[msg.sender] = safeSub(balances[msg.sender], _value) ;\n    totalSupply = safeSub(totalSupply, _value);\n    Transfer(msg.sender, 0x0, _value);\n    return true;\n  }\n\n  function transfer(address _to, uint _value) onlyUnlocked returns (bool) {\n    balances[msg.sender] = safeSub(balances[msg.sender], _value);\n    balances[_to] = safeAdd(balances[_to], _value);\n    Transfer(msg.sender, _to, _value);\n    return true;\n  }\n\n  function transferFrom(address _from, address _to, uint _value) onlyUnlocked returns (bool) {\n    var _allowance = allowed[_from][msg.sender];\n    \n    balances[_to] = safeAdd(balances[_to], _value);\n    balances[_from] = safeSub(balances[_from], _value);\n    allowed[_from][msg.sender] = safeSub(_allowance, _value);\n    Transfer(_from, _to, _value);\n    return true;\n  }\n\n  function balanceOf(address _owner) constant returns (uint balance) {\n    return balances[_owner];\n  }\n\n  function approve(address _spender, uint _value) returns (bool) {\n    allowed[msg.sender][_spender] = _value;\n    Approval(msg.sender, _spender, _value);\n    return true;\n  }\n\n    /* Approve and then comunicate the approved contract in a single tx */\n  function approveAndCall(address _spender, uint256 _value, bytes _extraData){    \n      TokenSpender spender = TokenSpender(_spender);\n      if (approve(_spender, _value)) {\n          spender.receiveApproval(msg.sender, _value, this, _extraData);\n      }\n  }\n\n  function allowance(address _owner, address _spender) constant returns (uint remaining) {\n    return allowed[_owner][_spender];\n  }\n  \n}\n\n",
+  "sourcePath": "rlc-token/contracts/RLC.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "rlc-token/contracts/RLC.sol",
+      "exportedSymbols": {
+        "RLC": [
+          1374
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".8"
+          ]
+        },
+        "id": 1047,
+        "name": "PragmaDirective",
+        "src": "0:23:7"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1046,
+          "absolutePath": "rlc-token/contracts/Ownable.sol",
+          "file": "./Ownable.sol",
+          "scope": 1375,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 1048,
+        "name": "ImportDirective",
+        "src": "25:23:7"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1571,
+          "absolutePath": "rlc-token/contracts/SafeMath.sol",
+          "file": "./SafeMath.sol",
+          "scope": 1375,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 1049,
+        "name": "ImportDirective",
+        "src": "49:24:7"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1005,
+          "absolutePath": "rlc-token/contracts/ERC20.sol",
+          "file": "./ERC20.sol",
+          "scope": 1375,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 1050,
+        "name": "ImportDirective",
+        "src": "74:21:7"
+      },
+      {
+        "attributes": {
+          "SourceUnit": 1585,
+          "absolutePath": "rlc-token/contracts/TokenSpender.sol",
+          "file": "./TokenSpender.sol",
+          "scope": 1375,
+          "symbolAliases": [
+            null
+          ],
+          "unitAlias": ""
+        },
+        "id": 1051,
+        "name": "ImportDirective",
+        "src": "96:28:7"
+      },
+      {
+        "attributes": {
+          "contractDependencies": [
+            1004,
+            1045,
+            1570
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            1374,
+            1045,
+            1570,
+            1004
+          ],
+          "name": "RLC",
+          "scope": 1375
+        },
+        "children": [
+          {
+            "attributes": {
+              "arguments": [
+                null
+              ]
+            },
+            "children": [
+              {
+                "attributes": {
+                  "contractScope": null,
+                  "name": "ERC20",
+                  "referencedDeclaration": 1004,
+                  "type": "contract ERC20"
+                },
+                "id": 1052,
+                "name": "UserDefinedTypeName",
+                "src": "141:5:7"
+              }
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+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint",
+                          "type": "uint256"
+                        },
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+                        "name": "ElementaryTypeName",
+                        "src": "2978:4:7"
+                      }
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+                  }
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+                "name": "ParameterList",
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+              },
+              {
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+                  {
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+                      "functionReturnParameters": 1365
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "isConstant": false,
+                          "isLValue": true,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "type": "uint256"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "isConstant": false,
+                              "isLValue": true,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "type": "mapping(address => uint256)"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1082,
+                                  "type": "mapping(address => mapping(address => uint256))",
+                                  "value": "allowed"
+                                },
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+                                "name": "Identifier",
+                                "src": "3007:7:7"
+                              },
+                              {
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+                                  ],
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+                                  "type": "address",
+                                  "value": "_owner"
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+                                "name": "Identifier",
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+                              }
+                            ],
+                            "id": 1368,
+                            "name": "IndexAccess",
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+                          },
+                          {
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+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1361,
+                              "type": "address",
+                              "value": "_spender"
+                            },
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+                            "name": "Identifier",
+                            "src": "3023:8:7"
+                          }
+                        ],
+                        "id": 1370,
+                        "name": "IndexAccess",
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+                      }
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+                    "name": "Return",
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+                  }
+                ],
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+                "name": "Block",
+                "src": "2994:43:7"
+              }
+            ],
+            "id": 1373,
+            "name": "FunctionDefinition",
+            "src": "2907:130:7"
+          }
+        ],
+        "id": 1374,
+        "name": "ContractDefinition",
+        "src": "125:2917:7"
+      }
+    ],
+    "id": 1375,
+    "name": "SourceUnit",
+    "src": "0:3044:7"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.993Z"
+}
\ No newline at end of file
diff --git a/build/contracts/SafeMath.json b/build/contracts/SafeMath.json
new file mode 100644
index 0000000..4ba85c4
--- /dev/null
+++ b/build/contracts/SafeMath.json
@@ -0,0 +1,2694 @@
+{
+  "contractName": "SafeMath",
+  "abi": [],
+  "bytecode": "0x60606040523415600e57600080fd5b603580601b6000396000f3006060604052600080fd00a165627a7a723058200a92dfbff50f3579312bc0747a90124e83c060292fe7bd7a1b3809f470e320d30029",
+  "deployedBytecode": "0x6060604052600080fd00a165627a7a723058200a92dfbff50f3579312bc0747a90124e83c060292fe7bd7a1b3809f470e320d30029",
+  "sourceMap": "25:1056:8:-;;;;;;;;;;;;;;;;;",
+  "deployedSourceMap": "25:1056:8:-;;;;;",
+  "source": "pragma solidity ^0.4.8;\n\ncontract SafeMath {\n  function safeMul(uint a, uint b) internal returns (uint) {\n    uint c = a * b;\n    assert(a == 0 || c / a == b);\n    return c;\n  }\n\n  function safeDiv(uint a, uint b) internal returns (uint) {\n    assert(b > 0);\n    uint c = a / b;\n    assert(a == b * c + a % b);\n    return c;\n  }\n\n  function safeSub(uint a, uint b) internal returns (uint) {\n    assert(b <= a);\n    return a - b;\n  }\n\n  function safeAdd(uint a, uint b) internal returns (uint) {\n    uint c = a + b;\n    assert(c>=a && c>=b);\n    return c;\n  }\n\n  function max64(uint64 a, uint64 b) internal constant returns (uint64) {\n    return a >= b ? a : b;\n  }\n\n  function min64(uint64 a, uint64 b) internal constant returns (uint64) {\n    return a < b ? a : b;\n  }\n\n  function max256(uint256 a, uint256 b) internal constant returns (uint256) {\n    return a >= b ? a : b;\n  }\n\n  function min256(uint256 a, uint256 b) internal constant returns (uint256) {\n    return a < b ? a : b;\n  }\n\n  function assert(bool assertion) internal {\n    if (!assertion) {\n      throw;\n    }\n  }\n}",
+  "sourcePath": "rlc-token/contracts/SafeMath.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "rlc-token/contracts/SafeMath.sol",
+      "exportedSymbols": {
+        "SafeMath": [
+          1570
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".8"
+          ]
+        },
+        "id": 1376,
+        "name": "PragmaDirective",
+        "src": "0:23:8"
+      },
+      {
+        "attributes": {
+          "baseContracts": [
+            null
+          ],
+          "contractDependencies": [
+            null
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": true,
+          "linearizedBaseContracts": [
+            1570
+          ],
+          "name": "SafeMath",
+          "scope": 1571
+        },
+        "children": [
+          {
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+              "implemented": true,
+              "isConstructor": false,
+              "modifiers": [
+                null
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+              "payable": false,
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+              "visibility": "internal"
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+                        "id": 1547,
+                        "name": "ElementaryTypeName",
+                        "src": "948:7:8"
+                      }
+                    ],
+                    "id": 1548,
+                    "name": "VariableDeclaration",
+                    "src": "948:7:8"
+                  }
+                ],
+                "id": 1549,
+                "name": "ParameterList",
+                "src": "947:9:8"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "functionReturnParameters": 1549
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "type": "uint256"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "commonType": {
+                                "typeIdentifier": "t_uint256",
+                                "typeString": "uint256"
+                              },
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": false,
+                              "lValueRequested": false,
+                              "operator": "<",
+                              "type": "bool"
+                            },
+                            "children": [
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1543,
+                                  "type": "uint256",
+                                  "value": "a"
+                                },
+                                "id": 1550,
+                                "name": "Identifier",
+                                "src": "970:1:8"
+                              },
+                              {
+                                "attributes": {
+                                  "argumentTypes": null,
+                                  "overloadedDeclarations": [
+                                    null
+                                  ],
+                                  "referencedDeclaration": 1545,
+                                  "type": "uint256",
+                                  "value": "b"
+                                },
+                                "id": 1551,
+                                "name": "Identifier",
+                                "src": "974:1:8"
+                              }
+                            ],
+                            "id": 1552,
+                            "name": "BinaryOperation",
+                            "src": "970:5:8"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1543,
+                              "type": "uint256",
+                              "value": "a"
+                            },
+                            "id": 1553,
+                            "name": "Identifier",
+                            "src": "978:1:8"
+                          },
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1545,
+                              "type": "uint256",
+                              "value": "b"
+                            },
+                            "id": 1554,
+                            "name": "Identifier",
+                            "src": "982:1:8"
+                          }
+                        ],
+                        "id": 1555,
+                        "name": "Conditional",
+                        "src": "970:13:8"
+                      }
+                    ],
+                    "id": 1556,
+                    "name": "Return",
+                    "src": "963:20:8"
+                  }
+                ],
+                "id": 1557,
+                "name": "Block",
+                "src": "957:31:8"
+              }
+            ],
+            "id": 1558,
+            "name": "FunctionDefinition",
+            "src": "883:105:8"
+          },
+          {
+            "attributes": {
+              "constant": false,
+              "implemented": true,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "assert",
+              "payable": false,
+              "scope": 1570,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "internal"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "assertion",
+                      "scope": 1569,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "bool",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "bool",
+                          "type": "bool"
+                        },
+                        "id": 1559,
+                        "name": "ElementaryTypeName",
+                        "src": "1008:4:8"
+                      }
+                    ],
+                    "id": 1560,
+                    "name": "VariableDeclaration",
+                    "src": "1008:14:8"
+                  }
+                ],
+                "id": 1561,
+                "name": "ParameterList",
+                "src": "1007:16:8"
+              },
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1562,
+                "name": "ParameterList",
+                "src": "1033:0:8"
+              },
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "falseBody": null
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "argumentTypes": null,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "operator": "!",
+                          "prefix": true,
+                          "type": "bool"
+                        },
+                        "children": [
+                          {
+                            "attributes": {
+                              "argumentTypes": null,
+                              "overloadedDeclarations": [
+                                null
+                              ],
+                              "referencedDeclaration": 1560,
+                              "type": "bool",
+                              "value": "assertion"
+                            },
+                            "id": 1563,
+                            "name": "Identifier",
+                            "src": "1044:9:8"
+                          }
+                        ],
+                        "id": 1564,
+                        "name": "UnaryOperation",
+                        "src": "1043:10:8"
+                      },
+                      {
+                        "children": [
+                          {
+                            "children": [],
+                            "id": 1565,
+                            "name": "Throw",
+                            "src": "1063:5:8"
+                          }
+                        ],
+                        "id": 1566,
+                        "name": "Block",
+                        "src": "1055:20:8"
+                      }
+                    ],
+                    "id": 1567,
+                    "name": "IfStatement",
+                    "src": "1039:36:8"
+                  }
+                ],
+                "id": 1568,
+                "name": "Block",
+                "src": "1033:46:8"
+              }
+            ],
+            "id": 1569,
+            "name": "FunctionDefinition",
+            "src": "992:87:8"
+          }
+        ],
+        "id": 1570,
+        "name": "ContractDefinition",
+        "src": "25:1056:8"
+      }
+    ],
+    "id": 1571,
+    "name": "SourceUnit",
+    "src": "0:1081:8"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.994Z"
+}
\ No newline at end of file
diff --git a/build/contracts/Scrapto.json b/build/contracts/Scrapto.json
new file mode 100644
index 0000000..01f173b
--- /dev/null
+++ b/build/contracts/Scrapto.json
@@ -0,0 +1,440 @@
+{
+    "contractName": "Scrapto",
+    "abi": [
+        {
+            "constant": false,
+            "inputs": [
+                {
+                    "name": "submitTxHash",
+                    "type": "bytes32"
+                },
+                {
+                    "name": "user",
+                    "type": "address"
+                },
+                {
+                    "name": "stdout",
+                    "type": "string"
+                },
+                {
+                    "name": "uri",
+                    "type": "string"
+                }
+            ],
+            "name": "iexecSubmitCallback",
+            "outputs": [
+                {
+                    "name": "",
+                    "type": "bool"
+                }
+            ],
+            "payable": false,
+            "stateMutability": "nonpayable",
+            "type": "function"
+        },
+        {
+            "constant": true,
+            "inputs": [],
+            "name": "DAPP_PRICE",
+            "outputs": [
+                {
+                    "name": "",
+                    "type": "uint256"
+                }
+            ],
+            "payable": false,
+            "stateMutability": "view",
+            "type": "function"
+        },
+        {
+            "constant": false,
+            "inputs": [
+                {
+                    "name": "param",
+                    "type": "string"
+                }
+            ],
+            "name": "iexecSubmit",
+            "outputs": [],
+            "payable": true,
+            "stateMutability": "payable",
+            "type": "function"
+        },
+        {
+            "constant": true,
+            "inputs": [],
+            "name": "DAPP_NAME",
+            "outputs": [
+                {
+                    "name": "",
+                    "type": "string"
+                }
+            ],
+            "payable": false,
+            "stateMutability": "view",
+            "type": "function"
+        },
+        {
+            "inputs": [
+                {
+                    "name": "_iexecOracleAddress",
+                    "type": "address"
+                }
+            ],
+            "payable": false,
+            "stateMutability": "nonpayable",
+            "type": "constructor"
+        },
+        {
+            "anonymous": false,
+            "inputs": [
+                {
+                    "indexed": false,
+                    "name": "submitTxHash",
+                    "type": "bytes32"
+                },
+                {
+                    "indexed": true,
+                    "name": "user",
+                    "type": "address"
+                },
+                {
+                    "indexed": false,
+                    "name": "stdout",
+                    "type": "string"
+                },
+                {
+                    "indexed": false,
+                    "name": "uri",
+                    "type": "string"
+                }
+            ],
+            "name": "IexecSubmitCallback",
+            "type": "event"
+        }
+    ],
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+    "source": "pragma solidity ^0.4.11;\nimport \"iexec-oracle-contract/contracts/IexecOracleAPI.sol\";\ncontract Scrapto is IexecOracleAPI{\n\n    uint public constant DAPP_PRICE = 0;\n    string public constant DAPP_NAME = \"scrapto\";\n    \n    function Scrapto (address _iexecOracleAddress) IexecOracleAPI(_iexecOracleAddress,DAPP_PRICE,DAPP_NAME){\n\n    }\n\n}\n",
+    "sourcePath": "/var/www/projects.dev/scrapto.dev/iexec/contracts/Scrapto.sol",
+    "ast": {
+        "attributes": {
+            "absolutePath": "/var/www/projects.dev/scrapto.dev/iexec/contracts/Scrapto.sol",
+            "exportedSymbols": {
+                "Scrapto": [
+                    22
+                ]
+            }
+        },
+        "children": [
+            {
+                "attributes": {
+                    "literals": [
+                        "solidity",
+                        "^",
+                        "0.4",
+                        ".11"
+                    ]
+                },
+                "id": 1,
+                "name": "PragmaDirective",
+                "src": "0:24:0"
+            },
+            {
+                "attributes": {
+                    "SourceUnit": 795,
+                    "absolutePath": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+                    "file": "iexec-oracle-contract/contracts/IexecOracleAPI.sol",
+                    "scope": 23,
+                    "symbolAliases": [
+                        null
+                    ],
+                    "unitAlias": ""
+                },
+                "id": 2,
+                "name": "ImportDirective",
+                "src": "25:60:0"
+            },
+            {
+                "attributes": {
+                    "contractDependencies": [
+                        794
+                    ],
+                    "contractKind": "contract",
+                    "documentation": null,
+                    "fullyImplemented": true,
+                    "linearizedBaseContracts": [
+                        22,
+                        794
+                    ],
+                    "name": "Scrapto",
+                    "scope": 23
+                },
+                "children": [
+                    {
+                        "attributes": {
+                            "arguments": [
+                                null
+                            ]
+                        },
+                        "children": [
+                            {
+                                "attributes": {
+                                    "contractScope": null,
+                                    "name": "IexecOracleAPI",
+                                    "referencedDeclaration": 794,
+                                    "type": "contract IexecOracleAPI"
+                                },
+                                "id": 3,
+                                "name": "UserDefinedTypeName",
+                                "src": "106:14:0"
+                            }
+                        ],
+                        "id": 4,
+                        "name": "InheritanceSpecifier",
+                        "src": "106:14:0"
+                    },
+                    {
+                        "attributes": {
+                            "constant": true,
+                            "name": "DAPP_PRICE",
+                            "scope": 22,
+                            "stateVariable": true,
+                            "storageLocation": "default",
+                            "type": "uint256",
+                            "visibility": "public"
+                        },
+                        "children": [
+                            {
+                                "attributes": {
+                                    "name": "uint",
+                                    "type": "uint256"
+                                },
+                                "id": 5,
+                                "name": "ElementaryTypeName",
+                                "src": "127:4:0"
+                            },
+                            {
+                                "attributes": {
+                                    "argumentTypes": null,
+                                    "hexvalue": "30",
+                                    "isConstant": false,
+                                    "isLValue": false,
+                                    "isPure": true,
+                                    "lValueRequested": false,
+                                    "subdenomination": null,
+                                    "token": "number",
+                                    "type": "int_const 0",
+                                    "value": "0"
+                                },
+                                "id": 6,
+                                "name": "Literal",
+                                "src": "161:1:0"
+                            }
+                        ],
+                        "id": 7,
+                        "name": "VariableDeclaration",
+                        "src": "127:35:0"
+                    },
+                    {
+                        "attributes": {
+                            "constant": true,
+                            "name": "DAPP_NAME",
+                            "scope": 22,
+                            "stateVariable": true,
+                            "storageLocation": "default",
+                            "type": "string memory",
+                            "visibility": "public"
+                        },
+                        "children": [
+                            {
+                                "attributes": {
+                                    "name": "string",
+                                    "type": "string storage pointer"
+                                },
+                                "id": 8,
+                                "name": "ElementaryTypeName",
+                                "src": "168:6:0"
+                            },
+                            {
+                                "attributes": {
+                                    "argumentTypes": null,
+                                    "hexvalue": "7363726170746f",
+                                    "isConstant": false,
+                                    "isLValue": false,
+                                    "isPure": true,
+                                    "lValueRequested": false,
+                                    "subdenomination": null,
+                                    "token": "string",
+                                    "type": "literal_string \"scrapto\"",
+                                    "value": "scrapto"
+                                },
+                                "id": 9,
+                                "name": "Literal",
+                                "src": "203:9:0"
+                            }
+                        ],
+                        "id": 10,
+                        "name": "VariableDeclaration",
+                        "src": "168:44:0"
+                    },
+                    {
+                        "attributes": {
+                            "constant": false,
+                            "implemented": true,
+                            "isConstructor": true,
+                            "name": "Scrapto",
+                            "payable": false,
+                            "scope": 22,
+                            "stateMutability": "nonpayable",
+                            "superFunction": null,
+                            "visibility": "public"
+                        },
+                        "children": [
+                            {
+                                "children": [
+                                    {
+                                        "attributes": {
+                                            "constant": false,
+                                            "name": "_iexecOracleAddress",
+                                            "scope": 21,
+                                            "stateVariable": false,
+                                            "storageLocation": "default",
+                                            "type": "address",
+                                            "value": null,
+                                            "visibility": "internal"
+                                        },
+                                        "children": [
+                                            {
+                                                "attributes": {
+                                                    "name": "address",
+                                                    "type": "address"
+                                                },
+                                                "id": 11,
+                                                "name": "ElementaryTypeName",
+                                                "src": "241:7:0"
+                                            }
+                                        ],
+                                        "id": 12,
+                                        "name": "VariableDeclaration",
+                                        "src": "241:27:0"
+                                    }
+                                ],
+                                "id": 13,
+                                "name": "ParameterList",
+                                "src": "240:29:0"
+                            },
+                            {
+                                "attributes": {
+                                    "parameters": [
+                                        null
+                                    ]
+                                },
+                                "children": [],
+                                "id": 19,
+                                "name": "ParameterList",
+                                "src": "326:0:0"
+                            },
+                            {
+                                "children": [
+                                    {
+                                        "attributes": {
+                                            "argumentTypes": null,
+                                            "overloadedDeclarations": [
+                                                null
+                                            ],
+                                            "referencedDeclaration": 794,
+                                            "type": "type(contract IexecOracleAPI)",
+                                            "value": "IexecOracleAPI"
+                                        },
+                                        "id": 14,
+                                        "name": "Identifier",
+                                        "src": "270:14:0"
+                                    },
+                                    {
+                                        "attributes": {
+                                            "argumentTypes": null,
+                                            "overloadedDeclarations": [
+                                                null
+                                            ],
+                                            "referencedDeclaration": 12,
+                                            "type": "address",
+                                            "value": "_iexecOracleAddress"
+                                        },
+                                        "id": 15,
+                                        "name": "Identifier",
+                                        "src": "285:19:0"
+                                    },
+                                    {
+                                        "attributes": {
+                                            "argumentTypes": null,
+                                            "overloadedDeclarations": [
+                                                null
+                                            ],
+                                            "referencedDeclaration": 7,
+                                            "type": "uint256",
+                                            "value": "DAPP_PRICE"
+                                        },
+                                        "id": 16,
+                                        "name": "Identifier",
+                                        "src": "305:10:0"
+                                    },
+                                    {
+                                        "attributes": {
+                                            "argumentTypes": null,
+                                            "overloadedDeclarations": [
+                                                null
+                                            ],
+                                            "referencedDeclaration": 10,
+                                            "type": "string memory",
+                                            "value": "DAPP_NAME"
+                                        },
+                                        "id": 17,
+                                        "name": "Identifier",
+                                        "src": "316:9:0"
+                                    }
+                                ],
+                                "id": 18,
+                                "name": "ModifierInvocation",
+                                "src": "270:56:0"
+                            },
+                            {
+                                "attributes": {
+                                    "statements": [
+                                        null
+                                    ]
+                                },
+                                "children": [],
+                                "id": 20,
+                                "name": "Block",
+                                "src": "326:8:0"
+                            }
+                        ],
+                        "id": 21,
+                        "name": "FunctionDefinition",
+                        "src": "223:111:0"
+                    }
+                ],
+                "id": 22,
+                "name": "ContractDefinition",
+                "src": "86:251:0"
+            }
+        ],
+        "id": 23,
+        "name": "SourceUnit",
+        "src": "0:338:0"
+    },
+    "compiler": {
+        "name": "solc",
+        "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+    },
+    "networks": {
+        "4": {
+            "address": "0xb90ee1f07744806746d0f0d171df1a5088da0252"
+        }
+    },
+    "schemaVersion": "1.0.1",
+    "updatedAt": "2018-01-13T10:23:13.990Z"
+}
\ No newline at end of file
diff --git a/build/contracts/TokenSpender.json b/build/contracts/TokenSpender.json
new file mode 100644
index 0000000..090cfe0
--- /dev/null
+++ b/build/contracts/TokenSpender.json
@@ -0,0 +1,239 @@
+{
+  "contractName": "TokenSpender",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        },
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_extraData",
+          "type": "bytes"
+        }
+      ],
+      "name": "receiveApproval",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "sourceMap": "",
+  "deployedSourceMap": "",
+  "source": "pragma solidity ^0.4.8;\n\ncontract TokenSpender {\n    function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData);\n}",
+  "sourcePath": "rlc-token/contracts/TokenSpender.sol",
+  "ast": {
+    "attributes": {
+      "absolutePath": "rlc-token/contracts/TokenSpender.sol",
+      "exportedSymbols": {
+        "TokenSpender": [
+          1584
+        ]
+      }
+    },
+    "children": [
+      {
+        "attributes": {
+          "literals": [
+            "solidity",
+            "^",
+            "0.4",
+            ".8"
+          ]
+        },
+        "id": 1572,
+        "name": "PragmaDirective",
+        "src": "0:23:9"
+      },
+      {
+        "attributes": {
+          "baseContracts": [
+            null
+          ],
+          "contractDependencies": [
+            null
+          ],
+          "contractKind": "contract",
+          "documentation": null,
+          "fullyImplemented": false,
+          "linearizedBaseContracts": [
+            1584
+          ],
+          "name": "TokenSpender",
+          "scope": 1585
+        },
+        "children": [
+          {
+            "attributes": {
+              "body": null,
+              "constant": false,
+              "implemented": false,
+              "isConstructor": false,
+              "modifiers": [
+                null
+              ],
+              "name": "receiveApproval",
+              "payable": false,
+              "scope": 1584,
+              "stateMutability": "nonpayable",
+              "superFunction": null,
+              "visibility": "public"
+            },
+            "children": [
+              {
+                "children": [
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "_from",
+                      "scope": 1583,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 1573,
+                        "name": "ElementaryTypeName",
+                        "src": "78:7:9"
+                      }
+                    ],
+                    "id": 1574,
+                    "name": "VariableDeclaration",
+                    "src": "78:13:9"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "_value",
+                      "scope": 1583,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "uint256",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "uint256",
+                          "type": "uint256"
+                        },
+                        "id": 1575,
+                        "name": "ElementaryTypeName",
+                        "src": "93:7:9"
+                      }
+                    ],
+                    "id": 1576,
+                    "name": "VariableDeclaration",
+                    "src": "93:14:9"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "_token",
+                      "scope": 1583,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "address",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "address",
+                          "type": "address"
+                        },
+                        "id": 1577,
+                        "name": "ElementaryTypeName",
+                        "src": "109:7:9"
+                      }
+                    ],
+                    "id": 1578,
+                    "name": "VariableDeclaration",
+                    "src": "109:14:9"
+                  },
+                  {
+                    "attributes": {
+                      "constant": false,
+                      "name": "_extraData",
+                      "scope": 1583,
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "type": "bytes memory",
+                      "value": null,
+                      "visibility": "internal"
+                    },
+                    "children": [
+                      {
+                        "attributes": {
+                          "name": "bytes",
+                          "type": "bytes storage pointer"
+                        },
+                        "id": 1579,
+                        "name": "ElementaryTypeName",
+                        "src": "125:5:9"
+                      }
+                    ],
+                    "id": 1580,
+                    "name": "VariableDeclaration",
+                    "src": "125:16:9"
+                  }
+                ],
+                "id": 1581,
+                "name": "ParameterList",
+                "src": "77:65:9"
+              },
+              {
+                "attributes": {
+                  "parameters": [
+                    null
+                  ]
+                },
+                "children": [],
+                "id": 1582,
+                "name": "ParameterList",
+                "src": "142:0:9"
+              }
+            ],
+            "id": 1583,
+            "name": "FunctionDefinition",
+            "src": "53:90:9"
+          }
+        ],
+        "id": 1584,
+        "name": "ContractDefinition",
+        "src": "25:120:9"
+      }
+    ],
+    "id": 1585,
+    "name": "SourceUnit",
+    "src": "0:145:9"
+  },
+  "compiler": {
+    "name": "solc",
+    "version": "0.4.18+commit.9cf6e910.Emscripten.clang"
+  },
+  "networks": {},
+  "schemaVersion": "1.0.1",
+  "updatedAt": "2018-01-13T10:23:13.994Z"
+}
\ No newline at end of file
diff --git a/contracts/MyContract.sol b/contracts/MyContract.sol
deleted file mode 100644
index 5382017..0000000
--- a/contracts/MyContract.sol
+++ /dev/null
@@ -1,9 +0,0 @@
-pragma solidity ^0.4.11;
-import "./IexecOracleAPI.sol";
-contract MyContract is IexecOracleAPI{
-
-    function MyContract (address _iexecOracleAddress) IexecOracleAPI(_iexecOracleAddress){
-
-    }
-
-}
\ No newline at end of file
diff --git a/contracts/Scrapto.sol b/contracts/Scrapto.sol
new file mode 100644
index 0000000..d1c7539
--- /dev/null
+++ b/contracts/Scrapto.sol
@@ -0,0 +1,12 @@
+pragma solidity ^0.4.11;
+import "iexec-oracle-contract/contracts/IexecOracleAPI.sol";
+contract Scrapto is IexecOracleAPI{
+
+    uint public constant DAPP_PRICE = 0;
+    string public constant DAPP_NAME = "scrapto";
+    
+    function Scrapto (address _iexecOracleAddress) IexecOracleAPI(_iexecOracleAddress,DAPP_PRICE,DAPP_NAME){
+
+    }
+
+}
diff --git a/examples/iexec-cmdline-10.js b/examples/iexec-cmdline-10.js
new file mode 100644
index 0000000..d70f53c
--- /dev/null
+++ b/examples/iexec-cmdline-10.js
@@ -0,0 +1,11 @@
+module.exports = {
+name:'Scrapto',
+  data: {
+    type: 'BINARY',
+    cpu: 'AMD64',
+    os: 'LINUX',
+  },
+  work: {
+    cmdline: 'demo_id_job',
+  }
+};
diff --git a/iexec.js b/iexec.js
index ddb3c67..d70f53c 100644
--- a/iexec.js
+++ b/iexec.js
@@ -1,6 +1,11 @@
 module.exports = {
-    name: 'MyContract',
-    constructorArgs: ['0xb34406538112bd2b3036b2c417c7cff827777a11'], // oracle v0.1.2 ropsten
-    // constructorArgs: ['0x98275d4b6511ef05ed063d127dd82b72588326c9'], // oracle v0.1.2 rinkeby
-    // constructorArgs: ['0xb81d38d843cb526a3d0c3130d568fe09799135aa'], // oracle v0.1.2 kovan
-};
\ No newline at end of file
+name:'Scrapto',
+  data: {
+    type: 'BINARY',
+    cpu: 'AMD64',
+    os: 'LINUX',
+  },
+  work: {
+    cmdline: 'demo_id_job',
+  }
+};
diff --git a/img/scrapto-component.png b/img/scrapto-component.png
new file mode 100644
index 0000000..52bd67f
Binary files /dev/null and b/img/scrapto-component.png differ
diff --git a/img/scrapto-sequence.png b/img/scrapto-sequence.png
new file mode 100644
index 0000000..a7bd9ef
Binary files /dev/null and b/img/scrapto-sequence.png differ
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..903a54c
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,27 @@
+{
+  "name": "iexec-dapp-init",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "ethereumjs-testrpc": {
+      "version": "3.9.2",
+      "resolved": "https://registry.npmjs.org/ethereumjs-testrpc/-/ethereumjs-testrpc-3.9.2.tgz",
+      "integrity": "sha1-uw8tPDqjk1CHKtOOQMg+nXhzMck="
+    },
+    "iexec-oracle-contract": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/iexec-oracle-contract/-/iexec-oracle-contract-1.1.3.tgz",
+      "integrity": "sha1-7obv6RA3h4UjJbUMK+bCvnLaia4=",
+      "requires": {
+        "rlc-token": "github:iexecblockchaincomputing/rlc-token#34d2a5c2a5320630b0421a96bafeefd401e41726"
+      }
+    },
+    "rlc-token": {
+      "version": "github:iexecblockchaincomputing/rlc-token#34d2a5c2a5320630b0421a96bafeefd401e41726",
+      "requires": {
+        "ethereumjs-testrpc": "3.9.2"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..3b45b48
--- /dev/null
+++ b/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "iexec-dapp-init",
+  "version": "1.0.0",
+  "description": "This is the registry for sample iexec dapps, used by the iexec-sdk cli.",
+  "main": "iexec.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/iExecBlockchainComputing/iexec-dapp-samples.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/iExecBlockchainComputing/iexec-dapp-samples/issues"
+  },
+  "homepage": "https://github.com/iExecBlockchainComputing/iexec-dapp-samples#readme",
+  "dependencies": {
+    "iexec-oracle-contract": "^1.1.3"
+  }
+}
diff --git a/truffle.js b/truffle.js
index 87b347c..cee669e 100644
--- a/truffle.js
+++ b/truffle.js
@@ -1,31 +1,53 @@
+'use strict';
+
+const oracleJSON = require('iexec-oracle-contract/build/contracts/IexecOracle.json');
+
+const ROPSTEN_ORACLE_ADDRESS = oracleJSON.networks['3'].address;
+const RINKEBY_ORACLE_ADDRESS = oracleJSON.networks['4'].address;
+const KOVAN_ORACLE_ADDRESS = oracleJSON.networks['42'].address;
+const MAIN_ORACLE_ADDRESS = oracleJSON.networks['1'].address;
+const LOCAL_ORACLE_ADDRESS = 'local_oracle_address_value';
+
 module.exports = {
-    networks: {
-        development: {
-            host: "http://localhost:8545",
-            port: 8545,
-            network_id: "*" // Match any network id
-        },
-        ropsten: {
-            host: "https://ropsten.infura.io/berv5GTB5cSdOJPPnqOq",
-            port: 8545,
-            network_id: "3",
-            iexecOracleAddress: "0xb34406538112bd2b3036b2c417c7cff827777a11", // oracle v0.1.2 ropsten
-            // gasPriceMultiplier: 2,  // use factor 2 of the network estimated gasPrice
-            // gasLimitMultiplier: 4,  // use factor 4 of the network estimated gasLimit
-            // gasPrice: 21000000000  // manually set the gasPrice in gwei. Prefer "gasPriceMultiplier"
-            // gas: 400000  // manually set the gas limit in gwei. Prefer "gasLimitMultiplier"
-        },
-        rinkeby: {
-            host: "https://rinkeby.infura.io/berv5GTB5cSdOJPPnqOq",
-            port: 8545,
-            network_id: "4",
-            iexecOracleAddress: "0x98275d4b6511ef05ed063d127dd82b72588326c9",// oracle v0.1.2 rinkeby
-        },
-        kovan: {
-            host: "https://kovan.infura.io/berv5GTB5cSdOJPPnqOq",
-            port: 8545,
-            network_id: "42",
-            iexecOracleAddress: "0xb81d38d843cb526a3d0c3130d568fe09799135aa",// oracle v0.1.2 kovan
-        },
+  networks: {
+    development: {
+      host: 'http://localhost:8545',
+      port: 8545,
+      network_id: '*', // Match any network id,
+      constructorArgs: [LOCAL_ORACLE_ADDRESS],
+      server: 'https://localhost:443'
+    },
+    ropsten: {
+      host: 'https://ropsten.infura.io/berv5GTB5cSdOJPPnqOq',
+      port: 8545,
+      network_id: '3',
+      constructorArgs: [ROPSTEN_ORACLE_ADDRESS],
+      server: 'https://testxw.iex.ec:443'
+      // gasPriceMultiplier: 2,  // use factor 2 of the network estimated gasPrice
+      // gasLimitMultiplier: 4,  // use factor 4 of the network estimated gasLimit
+      // gasPrice: 21000000000  // manually set the gasPrice in gwei. Prefer 'gasPriceMultiplier'
+      // gas: 400000  // manually set the gas limit in gwei. Prefer 'gasLimitMultiplier'
+    },
+    rinkeby: {
+      host: 'https://rinkeby.infura.io/berv5GTB5cSdOJPPnqOq',
+      port: 8545,
+      network_id: '4',
+      constructorArgs: [RINKEBY_ORACLE_ADDRESS],
+      server: 'https://testxw.iex.ec:443'
+    },
+    kovan: {
+      host: 'https://kovan.infura.io/berv5GTB5cSdOJPPnqOq',
+      port: 8545,
+      network_id: '42',
+      constructorArgs: [KOVAN_ORACLE_ADDRESS],
+      server: 'https://testxw.iex.ec:443'
+    },
+    mainnet: {
+      host: 'https://mainnet.infura.io/berv5GTB5cSdOJPPnqOq ',
+      port: 8545,
+      network_id: '1',
+      constructorArgs: [MAIN_ORACLE_ADDRESS],
+      server: 'https://mainxw.iex.ec:443'
     }
-};
+  }
+};
\ No newline at end of file