diff --git a/_data/chains/eip155-182.json b/_data/chains/eip155-182.json
new file mode 100644
index 000000000000..987a6d850f05
--- /dev/null
+++ b/_data/chains/eip155-182.json
@@ -0,0 +1,33 @@
+{
+  "name": "IOST Mainnet",
+  "chain": "iost",
+  "rpc": ["https://iost-mainnet.alt.technology"],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "BNB Chain Native Token",
+    "symbol": "BNB",
+    "decimals": 18
+  },
+  "infoURL": "https://iost.io",
+  "shortName": "iost-mainnet",
+  "chainId": 182,
+  "networkId": 182,
+  "icon": "bnbchain",
+  "slip44": 714,
+  "explorers": [
+    {
+      "name": "IOSTscan",
+      "url": "https://iost-mainnet-explorer.alt.technology",
+      "standard": "EIP3091"
+    }
+  ],
+  "parent": {
+    "type": "L2",
+    "chain": "eip155-56",
+    "bridges": [
+      {
+        "url": "https://10910bc5-8382-4ef5-bdc7-4c54c8f57e75.bridges.rollbridge.app/"
+      }
+    ]
+  }
+}
diff --git a/_data/chains/eip155-1949.json b/_data/chains/eip155-1949.json
new file mode 100644
index 000000000000..376c1c8aa2c5
--- /dev/null
+++ b/_data/chains/eip155-1949.json
@@ -0,0 +1,23 @@
+{
+  "name": "Bionix Testnet",
+  "chain": "Bionix",
+  "rpc": ["https://testnet-chain.bionixnetwork.com"],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Bionix",
+    "symbol": "tBIO",
+    "decimals": 18
+  },
+  "icon": "bionix",
+  "infoURL": "https://bionixnetwork.com",
+  "shortName": "tbio",
+  "chainId": 1949,
+  "networkId": 1949,
+  "explorers": [
+    {
+      "name": "Bionix Testnet Explorer",
+      "url": "https://testnet.bionixnetwork.com",
+      "standard": "none"
+    }
+  ]
+}
diff --git a/_data/chains/eip155-2702128.json b/_data/chains/eip155-2702128.json
index 524bb62774a2..3855507cf059 100644
--- a/_data/chains/eip155-2702128.json
+++ b/_data/chains/eip155-2702128.json
@@ -1,5 +1,5 @@
 {
-  "name": "Xterio Chain",
+  "name": "Xterio Chain (ETH)",
   "chain": "Xterio",
   "rpc": ["https://xterio-eth.alt.technology"],
   "faucets": [],
@@ -14,7 +14,7 @@
   "networkId": 2702128,
   "explorers": [
     {
-      "name": "Xterio Chain Explorer",
+      "name": "Xterio Chain (ETH) Explorer",
       "url": "https://eth.xterscan.io",
       "standard": "EIP3091"
     }
diff --git a/_data/chains/eip155-293.json b/_data/chains/eip155-293.json
new file mode 100644
index 000000000000..38b3520fbe94
--- /dev/null
+++ b/_data/chains/eip155-293.json
@@ -0,0 +1,26 @@
+{
+  "name": "DaVinci",
+  "chain": "DCOIN",
+  "rpc": ["https://rpc.davinci.bz"],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "DaVinci",
+    "symbol": "DCOIN",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://davinci.bz",
+  "shortName": "davinci",
+  "chainId": 293,
+  "networkId": 293,
+  "icon": "davinci",
+  "explorers": [
+    {
+      "name": "davinciscan",
+      "icon": "blockscout",
+      "url": "https://mainnet-explorer.davinci.bz",
+      "standard": "EIP3091"
+    }
+  ],
+  "status": "active"
+}
diff --git a/_data/chains/eip155-31611.json b/_data/chains/eip155-31611.json
new file mode 100644
index 000000000000..b34c3add3c19
--- /dev/null
+++ b/_data/chains/eip155-31611.json
@@ -0,0 +1,24 @@
+{
+  "name": "Mezo Matsnet Testnet",
+  "chain": "Mezo",
+  "rpc": ["https://rpc.test.mezo.org"],
+  "faucets": ["https://mezo.org/matsnet"],
+  "nativeCurrency": {
+    "name": "Bitcoin",
+    "symbol": "BTC",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://mezo.org/",
+  "shortName": "mezo",
+  "chainId": 31611,
+  "networkId": 31611,
+  "explorers": [
+    {
+      "name": "blockscout",
+      "url": "https://explorer.test.mezo.org",
+      "icon": "blockscout",
+      "standard": "EIP3091"
+    }
+  ]
+}
diff --git a/_data/chains/eip155-57073.json b/_data/chains/eip155-57073.json
new file mode 100644
index 000000000000..4a5eb880bde7
--- /dev/null
+++ b/_data/chains/eip155-57073.json
@@ -0,0 +1,18 @@
+{
+  "name": "Ink",
+  "chain": "ETH",
+  "rpc": [],
+  "faucets": [],
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "nativeCurrency": {
+    "name": "Ether",
+    "symbol": "ETH",
+    "decimals": 18
+  },
+  "infoURL": "https://inkonchain.com",
+  "shortName": "ink",
+  "chainId": 57073,
+  "networkId": 57073,
+  "explorers": [],
+  "status": "incubating"
+}
diff --git a/_data/chains/eip155-7897.json b/_data/chains/eip155-7897.json
new file mode 100644
index 000000000000..e255b6150434
--- /dev/null
+++ b/_data/chains/eip155-7897.json
@@ -0,0 +1,34 @@
+{
+  "name": "arena-z",
+  "title": "arena-z",
+  "chain": "arena-z",
+  "rpc": ["https://rpc.arena-z.gg", "wss://ws.arena-z.gg"],
+  "nativeCurrency": {
+    "name": "Ether",
+    "symbol": "ETH",
+    "decimals": 18
+  },
+  "infoURL": "https://raas.gelato.network/rollups/details/public/arena-z",
+  "faucets": [],
+  "shortName": "arena-z",
+  "chainId": 7897,
+  "networkId": 7897,
+  "slip44": 60,
+  "icon": "arena-z-mainnet",
+  "explorers": [
+    {
+      "name": "blockscout",
+      "url": "https://explorer.arena-z.gg",
+      "standard": "EIP3091"
+    }
+  ],
+  "parent": {
+    "type": "L2",
+    "chain": "eip155-1",
+    "bridges": [
+      {
+        "url": "https://bridge.gelato.network/bridge/arena-z"
+      }
+    ]
+  }
+}
diff --git a/_data/icons/arena-z-mainnet.json b/_data/icons/arena-z-mainnet.json
new file mode 100644
index 000000000000..6e53250b04c0
--- /dev/null
+++ b/_data/icons/arena-z-mainnet.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmPRGaSPsmbDwRgQUCJSfkEErrfXxHbpUhQSvvDTLgJ25R",
+    "width": 500,
+    "height": 500,
+    "format": "png"
+  }
+]
diff --git a/_data/icons/bionix.json b/_data/icons/bionix.json
new file mode 100644
index 000000000000..a0549006338d
--- /dev/null
+++ b/_data/icons/bionix.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmNVegdThJHrdcJxYTrmgccARTDTz9DkhxLffDCvDMp4an",
+    "width": 512,
+    "height": 512,
+    "format": "png"
+  }
+]
diff --git a/_data/icons/davinci.json b/_data/icons/davinci.json
new file mode 100644
index 000000000000..3726ec5f0f6c
--- /dev/null
+++ b/_data/icons/davinci.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://bafybeid7ggekwk5knwlxsesk4zomwrtg2mmcfwfqjtywghvljfbmukn2yu",
+    "width": 408,
+    "height": 353,
+    "format": "svg"
+  }
+]
diff --git a/_data/iconsDownload/QmNVegdThJHrdcJxYTrmgccARTDTz9DkhxLffDCvDMp4an b/_data/iconsDownload/QmNVegdThJHrdcJxYTrmgccARTDTz9DkhxLffDCvDMp4an
new file mode 100644
index 000000000000..27779eac30f7
Binary files /dev/null and b/_data/iconsDownload/QmNVegdThJHrdcJxYTrmgccARTDTz9DkhxLffDCvDMp4an differ
diff --git a/_data/iconsDownload/bafybeid7ggekwk5knwlxsesk4zomwrtg2mmcfwfqjtywghvljfbmukn2yu b/_data/iconsDownload/bafybeid7ggekwk5knwlxsesk4zomwrtg2mmcfwfqjtywghvljfbmukn2yu
new file mode 100644
index 000000000000..5c7129b59fbd
--- /dev/null
+++ b/_data/iconsDownload/bafybeid7ggekwk5knwlxsesk4zomwrtg2mmcfwfqjtywghvljfbmukn2yu
@@ -0,0 +1,8 @@
+<svg width="408" height="353" viewBox="0 0 408 353" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M94.5 219.515V2.01479C94.5 2.01479 101.5 -1.48521 119.5 4.51479C137.5 10.5148 145 22.5148 145 22.5148C145 22.5148 251 197.515 251 208.515C251 219.515 235 219.515 228 219.515H94.5Z" fill="black"/>
+<path d="M85.5 2.01479H2.5H1L2.5 4.51479L85.5 147.015V2.01479Z" fill="black"/>
+<path d="M406.5 2.01479H204V8.01479L204.432 8.0734C210.775 8.93353 214.463 9.43353 232 11.0148C246.264 14.7437 254.036 17.2039 265.5 25.5148C281.154 36.6229 286.671 42.5852 294 53.0148C295.151 52.6922 308.373 75.1568 313 92.5148C317.627 109.873 314.669 118.317 313 135.015C309.706 149.371 307.626 155.934 301 169.515C293.296 182.952 287.858 190.879 273 206.015C273 206.015 252.302 225.043 228 227.515H132.5L204 351.015L406.5 2.01479Z" fill="black"/>
+<path d="M94.5 219.515V2.01479C94.5 2.01479 101.5 -1.48521 119.5 4.51479C137.5 10.5148 145 22.5148 145 22.5148C145 22.5148 251 197.515 251 208.515C251 219.515 235 219.515 228 219.515H94.5Z" stroke="black"/>
+<path d="M85.5 2.01479H2.5H1L2.5 4.51479L85.5 147.015V2.01479Z" stroke="black"/>
+<path d="M406.5 2.01479H204V8.01479L204.432 8.0734C210.775 8.93353 214.463 9.43353 232 11.0148C246.264 14.7437 254.036 17.2039 265.5 25.5148C281.154 36.6229 286.671 42.5852 294 53.0148C295.151 52.6922 308.373 75.1568 313 92.5148C317.627 109.873 314.669 118.317 313 135.015C309.706 149.371 307.626 155.934 301 169.515C293.296 182.952 287.858 190.879 273 206.015C273 206.015 252.302 225.043 228 227.515H132.5L204 351.015L406.5 2.01479Z" stroke="black"/>
+</svg>
diff --git a/maintainer_checklist.md b/maintainer_checklist.md
index 6c5d0e21b75c..4e62ccf49dc4 100644
--- a/maintainer_checklist.md
+++ b/maintainer_checklist.md
@@ -4,7 +4,7 @@ A checklist for things to check before merging a chain PR.
 * If the PR contains icons:
   * `ipfs get` all icon CIDs
   * check if the size of the icons you got match the size given in the PR
-* Check if a PR does not remove a chain - chains cannot be re-moved - only deprecated (to protect from replay attacks)
+* Check if a PR does not remove a chain - chains cannot be removed - only deprecated (to protect from replay attacks)
 * Check if a PR does not assign a chainID to a newer chain (something like https://github.com/ethereum-lists/chains/pull/1750)
 
 If anyone has ideas on how to automate these things in CI - PRs welcome!