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  • Past due by 8 months Last updated 4 months ago

    Milestone: PoA & VM Execution Overview This milestone focuses on im…

    Milestone: PoA & VM Execution

    Overview

    This milestone focuses on implementing Proof of Authority (PoA) consensus and Virtual Machine (VM) execution for OPNet, enhancing the Bitcoin Layer 1 with smart contract capabilities. This milestone will also include the integration of WBTC (Wrapped Bitcoin) swapping functionalities and p2p trading.

    Objectives

    1. PoA Consensus Implementation

      • Develop and integrate a robust PoA consensus mechanism.
      • Establish a set of validators authorized to validate transactions.
      • Implement a reward system for validators.
      • Ensure secure and efficient validation processes.
    2. VM Execution

      • Develop a Virtual Machine (VM) for executing smart contracts.
      • Ensure deterministic execution of contracts to prevent variances in contract outcomes.
      • Implement isolation mechanisms using isolated-vm to sandbox contract execution.
      • Introduce a timeout mechanism based on CPU cycles to prevent DoS attacks and infinite loops.
    3. WBTC Swapping Integration (PSBT) / P2P trading style (PSBT)

      • P2P trading style
      • Implement functionalities for swapping BTC to WBTC and vice versa.
      • Ensure 1:1 value correspondence between BTC and WBTC.
      • Integrate smart contract mechanisms for secure and transparent swaps.

    Detailed Tasks

    PoA Consensus Implementation

    1. Validator Selection and Management

      • Define criteria for selecting validators.
      • Develop smart contracts for validator registration and management.
      • Implement a mechanism to regularly update the list of active validators.
    2. Transaction Validation

      • Develop algorithms for transaction validation.
      • Ensure transactions are validated efficiently and securely.
      • Implement consensus rules and ensure compliance among validators.
    3. Reward System

      • Develop a reward system to incentivize validators.
      • Implement smart contracts for distributing rewards.
      • Ensure transparency and fairness in reward distribution.

    VM Execution

    1. VM Development

      • Design and develop a VM capable of executing WebAssembly (Wasm) based contracts.
      • Ensure compatibility with OP20 and other relevant standards.
      • Implement a deterministic execution environment.
    2. Isolation and Security

      • Use isolated-vm to create isolated execution contexts for each contract.
      • Implement security measures to prevent cross-contract interference.
      • Ensure robust handling of external calls and state changes.
    3. Timeout Mechanism

      • Develop a timeout mechanism based on CPU cycles to limit execution time.
      • Implement monitoring and enforcement of execution limits.
      • Ensure graceful termination of contracts exceeding execution limits.

    WBTC Swapping Integration (PSBT) / P2P trading style (PSBT)

    1. Swap Mechanism Development

      • Develop smart contracts for BTC to WBTC swaps and vice versa.
      • Ensure atomic swaps to guarantee 1:1 value correspondence.
      • Implement mechanisms to handle edge cases and failures securely.
    2. Testing and Security

      • Conduct thorough testing of the swap mechanism under various scenarios.
      • Implement security audits to identify and mitigate vulnerabilities.
      • Ensure compliance with industry standards and best practices.

    Deliverables

    • Fully implemented PoA consensus mechanism.
    • Operational VM for executing Wasm-based smart contracts. (rust)
    • Integrated WBTC swapping functionalities.
    • Documentation detailing the implementation, usage, and maintenance.
    • Comprehensive test cases and results.
    • Security audit reports. (last)

    Risks and Mitigations

    • Security Risks: Conduct regular audits and testing to ensure robust security.
    • Execution Variance: Ensure deterministic execution through thorough testing and validation.
    • Validator Misbehavior: Implement strict rules and penalties for validator misbehavior.

    100% complete
  • Past due by 8 months Last updated 9 months ago

    Overview This focuses on the development and integration of a JSON-…

    Overview

    This focuses on the development and integration of a JSON-RPC interface for OPNet. The JSON-RPC interface will enable external applications and users to interact with the OPNet system programmatically, providing a standardized method for executing remote procedure calls over the network.

    Objectives

    1. JSON-RPC Server Implementation

      • Develop a JSON-RPC server to handle incoming requests.
      • Ensure compatibility with the JSON-RPC 2.0 specification.
      • Implement secure communication channels.
    2. API Method Development

      • Define and implement API methods for core functionalities.
      • Ensure each method is well-documented and tested.
      • Provide error handling and validation for API requests.
    3. Client Libraries

      • Develop client libraries in multiple programming languages.
      • Ensure libraries are easy to use and integrate with existing systems.
      • Provide comprehensive documentation and examples.

    Detailed Tasks

    JSON-RPC Server Implementation

    1. Server Setup

      • Set up a JSON-RPC server using a suitable framework (e.g., Node.js, Python, Go).
      • Ensure the server can handle concurrent requests efficiently.
    2. Compatibility and Standards

      • Implement the JSON-RPC 2.0 specification.
      • Ensure strict adherence to JSON-RPC standards for request and response formats.
    3. Secure Communication

      • Implement HTTPS for secure communication.
      • Ensure proper authentication and authorization mechanisms are in place.

    API Method Development

    1. Core Method Definition

      • Define the core methods to be exposed via the JSON-RPC interface.
      • Ensure methods cover key functionalities such as transaction creation, smart contract execution, and querying the blockchain.
    2. Implementation and Testing

      • Implement each API method, ensuring it performs the intended operations correctly.
      • Develop unit tests and integration tests for each method.
    3. Error Handling and Validation

      • Implement robust error handling to provide meaningful error messages.
      • Ensure input validation to prevent malformed requests and potential security vulnerabilities.

    Client Libraries

    1. Library Development

      • Develop client libraries for at least three programming languages (e.g., JavaScript, Python, Java).
      • Ensure libraries provide a simple and intuitive interface for interacting with the JSON-RPC server.
    2. Documentation and Examples

      • Provide comprehensive documentation for each client library.
      • Include usage examples and sample code to help developers get started quickly.
    3. Community Engagement

      • Engage with the developer community to gather feedback and improve the libraries.
      • Provide support channels for developers using the JSON-RPC interface.

    Deliverables

    • Fully implemented and tested JSON-RPC server.
    • Comprehensive API documentation detailing each method, its parameters, and expected responses.
    • Developed client libraries for multiple programming languages.
    • Documentation and examples for client libraries.
    • Security audit reports and test results.

    Dependencies

    • Existing OPNet infrastructure and APIs.
    • Secure communication protocols (e.g., HTTPS).
    • Community and developer feedback for client libraries.

    Risks and Mitigations

    • Security Risks: Implement robust security measures and conduct regular audits.
    • API Compatibility: Ensure strict adherence to JSON-RPC standards and thorough testing.
    • Client Library Adoption: Engage with the developer community and provide comprehensive documentation.

    References

    100% complete