diff --git a/contracts/impls/apps/WitnetPriceFeedsUpgradable.sol b/contracts/impls/apps/WitnetPriceFeedsUpgradable.sol
index 7293aaa91..515a640c9 100644
--- a/contracts/impls/apps/WitnetPriceFeedsUpgradable.sol
+++ b/contracts/impls/apps/WitnetPriceFeedsUpgradable.sol
@@ -337,9 +337,9 @@ contract WitnetPriceFeedsUpgradable
                     }
                     __feed.latestValidQueryId = _latestId;
                 } else {
-                    // Otherwise, delete latest query, as it was faulty
+                    // Otherwise, try to delete latest query, as it was faulty
                     // and we are about to post a new update request:
-                    witnet.deleteQuery(_latestId);
+                    try witnet.deleteQuery(_latestId) {} catch {}
                 }
                 // Post update request to the WRB:
                 _latestId = witnet.postRequest{value: _usedFunds}(__feed.radHash, _slaHash);
diff --git a/contracts/impls/core/WitnetBytecodesDefault.sol b/contracts/impls/core/WitnetBytecodesDefault.sol
index aa106d93f..7fff27482 100644
--- a/contracts/impls/core/WitnetBytecodesDefault.sol
+++ b/contracts/impls/core/WitnetBytecodesDefault.sol
@@ -575,7 +575,7 @@ contract WitnetBytecodesDefault
             }
         
             // Calculate radhash and add request metadata and rad bytecode to storage:
-            _radHash = _bytecode.hash();
+            _radHash = _witnetHash(_bytecode);
             __database().rads[hash] = _radHash;
             __database().radsBytecode[_radHash] = _bytecode;
             __database().requests[_radHash] = RadonRequest({
@@ -603,7 +603,7 @@ contract WitnetBytecodesDefault
         bytes memory _bytecode = _sla.encode();
 
         // Calculate hash and add to storage if new:
-        _slaHash = _bytecode.hash();
+        _slaHash = _witnetHash(_bytecode);
         if (__database().slas[_slaHash].numWitnesses == 0) {
             __database().slas[_slaHash] = _sla;
             __database().slasBytecode[_slaHash] = _bytecode;
@@ -660,4 +660,8 @@ contract WitnetBytecodesDefault
         }
     }
 
+    function _witnetHash(bytes memory chunk) virtual internal pure returns (bytes32) {
+        return sha256(chunk);
+    }
+
 }
\ No newline at end of file
diff --git a/contracts/impls/core/customs/WitnetBytecodesNoSha256.sol b/contracts/impls/core/customs/WitnetBytecodesNoSha256.sol
new file mode 100644
index 000000000..0d50f2621
--- /dev/null
+++ b/contracts/impls/core/customs/WitnetBytecodesNoSha256.sol
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity >=0.7.0 <0.9.0;
+pragma experimental ABIEncoderV2;
+
+import "../WitnetBytecodesDefault.sol";
+
+contract WitnetBytecodesNoSha256 is WitnetBytecodesDefault {
+
+    constructor(
+            bool _upgradable,
+            bytes32 _versionTag
+        )
+        WitnetBytecodesDefault(_upgradable, _versionTag)
+    {}
+    
+    function _witnetHash(bytes memory chunk) virtual override internal pure returns (bytes32) {
+        return keccak256(chunk);
+    }
+}
\ No newline at end of file
diff --git a/contracts/impls/core/customs/WitnetRequestFactoryCfxCore.sol b/contracts/impls/core/customs/WitnetRequestFactoryCfxCore.sol
new file mode 100644
index 000000000..87090fb62
--- /dev/null
+++ b/contracts/impls/core/customs/WitnetRequestFactoryCfxCore.sol
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity >=0.7.0 <0.9.0;
+pragma experimental ABIEncoderV2;
+
+import "../WitnetRequestFactoryDefault.sol";
+
+contract WitnetRequestFactoryCfxCore is WitnetRequestFactoryDefault {
+    constructor(
+            WitnetBytecodes _registry,
+            bool _upgradable,
+            bytes32 _versionTag
+        )
+        WitnetRequestFactoryDefault(_registry, _upgradable, _versionTag)
+    {}
+
+    function _cloneDeterministic(bytes32 _salt)
+        override internal
+        returns (address _instance)
+    {
+        bytes memory ptr = _cloneBytecodePtr();
+        assembly {
+            // CREATE2 new instance:
+            _instance := create2(0, ptr, 0x37, _salt)
+        }
+        emit Cloned(msg.sender, self(), _instance);
+    }
+}
\ No newline at end of file
diff --git a/contracts/libs/Witnet.sol b/contracts/libs/Witnet.sol
index 159adffa7..9bf916689 100644
--- a/contracts/libs/Witnet.sol
+++ b/contracts/libs/Witnet.sol
@@ -355,7 +355,7 @@ library Witnet {
         ) {
             return sha256(_bytecode);
         } else {
-            return 0x0;
+            return keccak256(_bytecode);
         }
     }
 
diff --git a/contracts/patterns/Clonable.sol b/contracts/patterns/Clonable.sol
index 5a30e9fd8..8296c9db8 100644
--- a/contracts/patterns/Clonable.sol
+++ b/contracts/patterns/Clonable.sol
@@ -97,7 +97,7 @@ abstract contract Clonable
     /// @dev See https://eips.ethereum.org/EIPS/eip-1167.
     /// @dev See https://blog.openzeppelin.com/deep-dive-into-the-minimal-proxy-contract/.
     function _cloneDeterministic(bytes32 _salt)
-        internal
+        virtual internal
         returns (address _instance)
     {
         bytes memory ptr = _cloneBytecodePtr();
diff --git a/migrations/witnet.addresses.json b/migrations/witnet.addresses.json
index 70e4938da..7aafd0524 100644
--- a/migrations/witnet.addresses.json
+++ b/migrations/witnet.addresses.json
@@ -1,16 +1,22 @@
 {
     "default": {
         "ethereum.goerli": {
-            "WitnetLib": "0xd80ffbc599ad5f2Bb6b33AEaAC5E4Fac3cfaf0D1",
+            "WitnetProxy": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0x1cF3Aa9DBF4880d797945726B94B9d29164211BE",
             "WitnetRandomness": "0x6Eb87EcCe6218Cd0e97299331D2aa5d2e53da5cD",
-            "WitnetRequestBoard": "0xb58D05247d16b3F1BD6B59c52f7f61fFef02BeC8"
-        },
-        "ethereum.rinkeby": {
-            "WitnetLib": "0xF4fE7fA5c5e6CCa213377F10fD98b6b0DC00cd70",
-            "WitnetPriceRouter": "0xa50b17C2fc373c247C3b603f83df6A7800cB0DC9",
-            "WitnetRandomness": "0x50F742Fbf9a445AE6B2136F5987414A4c5aeE921",
-            "WitnetRequestBoard": "0x6cE42a35C61ccfb42907EEE57eDF14Bb69C7fEF4"
+            "WitnetRequestBoard": "0xb58D05247d16b3F1BD6B59c52f7f61fFef02BeC8",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xc71A87657b13A370594967A04b4301a3AcEAF007",
+            "WitnetEncodingLib": "0x705E076F3387cFd59708D8D8508CECe3e1C65C87",
+            "WitnetPriceFeedsLib": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
+            "WitnetBytecodesImplementation": "0xB772f86004330738C1529cC1b0327D24aeF8c370",
+            "WitnetPriceFeedsImplementation": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
+            "WitnetRequestBoardImplementation": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF",
+            "WitnetRequestFactoryImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestRandomness": "0x65772461641A4A6E8B10c81bae1a132E04e77262"
         },
         "ethereum.mainnet": {
             "WitnetBytecodes": "0xB8CdB2577dA632a77D6b90526aB53Eb5694Ed2D1",
@@ -26,10 +32,22 @@
     },
     "arbitrum": {
         "arbitrum.goerli": {
-            "WitnetParserLib": "0x7d0a71D7D797b7b2637F682e4cB47f66602e59F3",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xAafb2D27E2E0f83dcE501a2879aaD710ec377403",
             "WitnetRandomness": "0xB0C5d40A7658b2ab28360aFa6eB5bAeb2fFe86c3",
-            "WitnetRequestBoard": "0xa6a6b2cBE9Ce5B8fF94729F1eC402efc5042AbBF"
+            "WitnetRequestBoard": "0xa6a6b2cBE9Ce5B8fF94729F1eC402efc5042AbBF",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetBytecodesImplementation": "0x50AA08187D2F648Dd428784AF6489c3F12e942CC",
+            "WitnetPriceFeedsImplementation": "0x620e20d91C9b0e11ecAE439E7b85138DA2a1003F",
+            "WitnetRequestBoardImplementation": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetRequestFactoryImplementation": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
+            "WitnetRequestRandomness": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
+            "WitnetPriceFeedsLib": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771"
         },
         "arbitrum.one": {
             "WitnetProxy": "0x0Dd81412825b9C3960195ab47F14dFa9Fd70e36e",
@@ -52,10 +70,22 @@
     },
     "avalanche": {
         "avalanche.testnet": {
-            "WitnetLib": "0x62B1BB81E57E9c0E22A0dc6FdeE456146a7D7083",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0x99Af0CF37d1C6b9Bdfe33cc0A89C00D97D3c42F4",
             "WitnetRandomness": "0xD47fc24C99fD94f33bD2f33FE373b1447bB10724",
-            "WitnetRequestBoard": "0xD9465D38f50f364b3263Cb219e58d4dB2D584530"
+            "WitnetRequestBoard": "0xD9465D38f50f364b3263Cb219e58d4dB2D584530",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetRequestRandomness": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetPriceFeedsLib": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
+            "WitnetBytecodesImplementation": "0x20f4B1793bb81FFa357E1705AD954BdC232Edc00",
+            "WitnetPriceFeedsImplementation": "0x8762508A67e71Df04212B256E19faB1771F9a2F4",
+            "WitnetRequestBoardImplementation": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
+            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550"
         },
         "avalanche.mainnet": {
             "WitnetLib": "0xD39D4d972C7E166856c4eb29E54D3548B4597F53",
@@ -72,16 +102,16 @@
             "WitnetRandomness": "0x88888885966F8F77cC6E797aE263C4d091e44A55",
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetPriceFeedsLib": "0x8684d396366C21AA01B120F69df2070f840aC134",
+            "WitnetErrorsLib": "0x2F0912fa566B5B3215e746Dc108d85fDd4A8113A",
+            "WitnetEncodingLib": "0x1aaD03ECfb062A0Af5FAc0276791621740b1CE56",
+            "WitnetPriceFeedsLib": "0x5c1dD29563203883A5D5C3136783D3119B2C4e57",
             "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
             "WitnetProxy": "0xc71A87657b13A370594967A04b4301a3AcEAF007",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "0xef978B8CdA6464D0fBaCE5FBC8Ed7A7A8976E094",
+            "WitnetBytecodesImplementation": "0x2Ce7843C1c2fce51DE54a06dB3516103fbde0F6D",
+            "WitnetPriceFeedsImplementation": "0xd0f725Bf11bA75D291506d396FbcbeCAb5384e95",
             "WitnetRandomnessImplementation": "0xB4f1f8E27799256ec95C5b5A8d2A5722Bd542E69",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x2163DBCBdbBeC066EF8d8Adab75Af8b0B9A5cfAA",
+            "WitnetRequestBoardImplementation": "0x3f189fAc162d3CC6d84EF72c8177afAd8f3DBeE1",
+            "WitnetRequestFactoryImplementation": "0xce66333c9D7BE37D61d3c5b57D6D41ff082Ca92f",
             "WitnetRequestRandomness": "0x620e20d91C9b0e11ecAE439E7b85138DA2a1003F"
         },
         "boba.bnb.mainnet": {
@@ -103,23 +133,23 @@
             "WitnetRequestFactoryImplementation": "0x4756097b9184327713D07b3ac4C2a898468220B1",
             "WitnetRequestRandomness": "0xA99B485363DBAe90D17B10F988C4e1Ae895048e0"
         },
-        "boba.moonbeam.bobabase": {
-            "WitnetLib": "0x02Cd4089679EAA9431a88170fd784e7dE78A2425",
-            "WitnetPriceRouter": "0xD9465D38f50f364b3263Cb219e58d4dB2D584530",
-            "WitnetRandomness": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
-            "WitnetRequestBoard": "0x0985FDe9f424fe4f5AC516F66bAf5591e18aCBEb"
-        },
         "boba.ethereum.goerli": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
             "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
-        },
-        "boba.ethereum.rinkeby": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
-            "WitnetPriceRouter": "0x36928Aeedaaf7D85bcA39aDfB2A39ec529ce221a",
-            "WitnetRandomness": "0xeAcAcC48eDD5221EC7182E1789d8bFa9dF801dFF",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetPriceFeedsLib": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetBytecodesImplementation": "0x7538f6Bff94B0F7F0A0802376238Aab0D2528521",
+            "WitnetPriceFeedsImplementation": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771",
+            "WitnetRequestBoardImplementation": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
+            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetRequestRandomness": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF"
         },
         "boba.ethereum.mainnet": {
             "WitnetLib": "0x6473063EBEabC0606A4159b7d9F79BB306ED0D2A",
@@ -130,10 +160,22 @@
     },
     "celo": {
         "celo.alfajores": {
-            "WitnetLib": "0x1A58F1dAD4592814733913Dd59CcEbf55c45C6e1",
+            "WitnetProxy": "0x4743325168af9195Aa5b25e491E9bE87d87E7F93",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0x6f8A7E2bBc1eDb8782145cD1089251f6e2C738AE",
+            "WitnetRandomness": "0xbD804467270bCD832b4948242453CA66972860F5",
             "WitnetRequestBoard": "0x99a0B5eb260Fe3BfcF9d658850e3dD6d6B69183A",
-            "WitnetRandomness": "0xbD804467270bCD832b4948242453CA66972860F5"
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetRequestRandomness": "0xdC101573cB42EB7006Ad6C7E08ce8C91fEAcB62C",
+            "WitnetErrorsLib": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetEncodingLib": "0x4374a050f808d1FF18bCcf73270daE3EdF8D0865",
+            "WitnetPriceFeedsLib": "0x50AA08187D2F648Dd428784AF6489c3F12e942CC",
+            "WitnetBytecodesImplementation": "0x2163DBCBdbBeC066EF8d8Adab75Af8b0B9A5cfAA",
+            "WitnetPriceFeedsImplementation": "0x654B79823f244c2476907F21EBD20cFebC04D0A5",
+            "WitnetRequestBoardImplementation": "0x6bF6F65Ad0859e9Ee869DAD252a29c9daAa27449",
+            "WitnetRequestFactoryImplementation": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771"
         },
         "celo.mainnet": {
             "WitnetLib": "0x46FF6e05fd0a5fb4D794B99eCAE41c43f4D62d15",
@@ -144,10 +186,22 @@
     },
     "conflux": {
         "conflux.core.testnet": {
-            "WitnetLib": "0x88E443F2CB310B24dd505AeBECA23e7aBA562326",
+            "WitnetProxy": "0x8E077eBf150a5f09e26805F1CB1d14671834b63A",
+            "Create2Factory": "0x8644e9b7306cD4e6E5a3dB2aA7DFDE2744eAE676",
+            "WitnetBytecodes": "0x8E6AEaC77a18DF3e90B1446BB2210013A331Cb12",
+            "WitnetPriceFeeds": "0x8FDD679F4D1d2bfb97B5e5fD90c8E3E6ce0ce75c",
             "WitnetPriceRouter": "0x8F61C7b18F69bB87D6151B8a5D733E1945ea6c25",
             "WitnetRandomness": "0x887bC8Db7D91413D1575071925Ee8d77fE2CBc81",
-            "WitnetRequestBoard": "0x8aB653B73a0e0552dDdce8c76F97c6AA826EFbD4"
+            "WitnetRequestBoard": "0x8aB653B73a0e0552dDdce8c76F97c6AA826EFbD4",
+            "WitnetRequestFactory": "0x83eFF90a51D7da324AE1580eab6Ee0c9D45ad509",
+            "WitnetErrorsLib": "0x8d5Fda8c48dF35f321301e69c3c605AABCA474b1",
+            "WitnetEncodingLib": "0x80e922796897Cb9f3F871146CCC8d120924B2Ca7",
+            "WitnetBytecodesImplementation": "0x808BdD5dDB2AB817FeA6D2579eB5417F5413539f",
+            "WitnetPriceFeedsImplementation": "0x81f3EB9a7853F8e1357f6BB61E7BB610F73605F1",
+            "WitnetRequestBoardImplementation": "0x87b78B8ca2707451f7cf7c1Eaadf12B6AF0bEc14",
+            "WitnetRequestFactoryImplementation": "0x89a49b46864049b16dFcf185740Ac89Eec8Fd670",
+            "WitnetRequestRandomness": "0x89F71E0dE2ed681aD005C51B044a026f0eE71920",
+            "WitnetPriceFeedsLib": "0x87cA78592Cb691BA3a1919c2d83Ed578e8E0Ae0a"
         },
         "conflux.core.mainnet": {
             "WitnetLib": "0x8A026e6956B4DB3E81bb113401798e59cFBEA4C6",
@@ -156,10 +210,22 @@
             "WitnetRequestBoard": "0x84C708bfd79bBC83Ad8753dAb1852EfE9D6712CC"
         },
         "conflux.espace.testnet": {
-            "WitnetLib": "0x2881F0106A1894add7600B4B147e715078Fded03",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0x49C0BCce51a8B28f92d008394F06d5B259657F33",
             "WitnetRandomness": "0xa784093826e2894Ab3Db315f4e05F0F26407BBfF",
-            "WitnetRequestBoard": "0x0C4be6AA667df48de54BA174bE7948875fdf152B"
+            "WitnetRequestBoard": "0x0C4be6AA667df48de54BA174bE7948875fdf152B",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetBytecodesImplementation": "0x20f4B1793bb81FFa357E1705AD954BdC232Edc00",
+            "WitnetPriceFeedsImplementation": "0x6bF6F65Ad0859e9Ee869DAD252a29c9daAa27449",
+            "WitnetRequestBoardImplementation": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF",
+            "WitnetRequestFactoryImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestRandomness": "0x65772461641A4A6E8B10c81bae1a132E04e77262",
+            "WitnetPriceFeedsLib": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662"
         },
         "conflux.espace.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -170,10 +236,22 @@
     },
     "cronos": {
         "cronos.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
             "WitnetRandomness": "0x0017A464A86f48B342Cae3b8Fe29cFCDaA7b0643",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771",
+            "WitnetEncodingLib": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
+            "WitnetPriceFeedsLib": "0xB1Ee13a85B2593D5191f3a2A08f175b1c918B9bb",
+            "WitnetBytecodesImplementation": "0x14417b205ef242a364Dc68540Eb42F974b1Ea909",
+            "WitnetPriceFeedsImplementation": "0x7538f6Bff94B0F7F0A0802376238Aab0D2528521",
+            "WitnetRequestBoardImplementation": "0x8D20457d968c937b7cb65be6B8cC766613fBcF28",
+            "WitnetRequestFactoryImplementation": "0xA8767A6EA3099De344499B35f725A38E3cD15562",
+            "WitnetRequestRandomness": "0x7de5fE2458b198A0Fe9B557bC485825A10978cf9"
         },
         "cronos.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -184,10 +262,22 @@
     },
     "cube": {
         "cube.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "",
+            "Create2Factory": "",
+            "WitnetBytecodes": "",
+            "WitnetPriceFeeds": "",
             "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
             "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "",
+            "WitnetErrorsLib": "",
+            "WitnetEncodingLib": "",
+            "WitnetPriceFeedsLib": "",
+            "WitnetBytecodesImplementation": "",
+            "WitnetPriceFeedsImplementation": "",
+            "WitnetRequestBoardImplementation": "",
+            "WitnetRequestFactoryImplementation": "",
+            "WitnetRequestRandomness": ""
         },
         "cube.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -198,10 +288,22 @@
     },
     "dogechain": {
         "dogechain.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0x9E943Ab1FD0D35B3BaDe31AA78D60C485EA1a604",
             "WitnetRandomness": "0xD9465D38f50f364b3263Cb219e58d4dB2D584530",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetPriceFeedsLib": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetBytecodesImplementation": "0x7de5fE2458b198A0Fe9B557bC485825A10978cf9",
+            "WitnetPriceFeedsImplementation": "0xdC101573cB42EB7006Ad6C7E08ce8C91fEAcB62C",
+            "WitnetRequestBoardImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetRequestRandomness": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF"
         },
         "dogechain.mainnet": {
             "WitnetLib": "0xD39D4d972C7E166856c4eb29E54D3548B4597F53",
@@ -220,14 +322,14 @@
             "WitnetRandomness": "0x88888885966F8F77cC6E797aE263C4d091e44A55",
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetPriceFeedsLib": "0xeD6e685842b347cdB527a8Ad996B14c42fD7ca94",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "0x950FA00420459C64a02447509aE0a408a2d60A61",
+            "WitnetErrorsLib": "0xEdb5535994bF19d56c30F5BEa0937232E198F671",
+            "WitnetEncodingLib": "0xCec45c4B041F30aAA70f2645c291DF27B949ffc4",
+            "WitnetPriceFeedsLib": "0xC1266fA3D24f5d63E2e34633b3F829E9156be0d6",
+            "WitnetBytecodesImplementation": "0x724d8E0a9B83a3Fc1A807b91392cAF5f42233307",
+            "WitnetPriceFeedsImplementation": "0xdA489690BDfd6e4d76DE3b937f40342bAd281bc9",
             "WitnetRandomnessImplementation": "0x9597b5708CDB58fF057ca494574951Fc3d9163f7",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x692De6368d415469e59B31a2b0895b83Ed6F8a3A",
+            "WitnetRequestBoardImplementation": "0x83Bf7353Db9EefEf3169e391b1EAcd2A9b2d191d",
+            "WitnetRequestFactoryImplementation": "0x4779A692aC089E02FD1301B0b53Fa1a02985a83F",
             "WitnetRequestRandomness": "0x34fcD46c6D97A534BdC31Eb9d1e5273298CA8034"
         },
         "elastos.mainnet": {
@@ -260,13 +362,14 @@
             "WitnetRandomness": "0x88888885966F8F77cC6E797aE263C4d091e44A55",
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "",
+            "WitnetErrorsLib": "0x123a7AcE0879C4645b19A69c2ba8B3E4d01fBfD6",
+            "WitnetEncodingLib": "0xCFf84e16db3c705aD3C6e96b5575ab9111C874B9",
+            "WitnetPriceFeedsLib": "0xEeA1423D8cAf1e9440495842613Ec042046065aC",
+            "WitnetBytecodesImplementation": "0x80264666C9a4e73e8D8E31c3Ea1677907c5163dD",
+            "WitnetPriceFeedsImplementation": "0x3280539A77C578C3eF698f53f29CDba00eC9B72E",
             "WitnetRandomnessImplementation": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetRequestBoardImplementation": "0x772B58c026691E4720BD32bD058af722b2629a25",
+            "WitnetRequestFactoryImplementation": "0x83e8f5B6D4D94CAC5943689616B96786c2465c9A",
             "WitnetRequestRandomness": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee"
         }
     },
@@ -278,40 +381,37 @@
             "WitnetRandomness": "0x88888885966F8F77cC6E797aE263C4d091e44A55",
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetPriceFeedsLib": "0x620e20d91C9b0e11ecAE439E7b85138DA2a1003F",
+            "WitnetErrorsLib": "0x9F026F081b5E1f60d583CE380f30A0a4eF0AB97a",
+            "WitnetEncodingLib": "0x7538f6Bff94B0F7F0A0802376238Aab0D2528521",
+            "WitnetPriceFeedsLib": "0x69891cE36F6dFbef4A7BdD0E95A15CBA916f206b",
             "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
             "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "0xB4f1f8E27799256ec95C5b5A8d2A5722Bd542E69",
+            "WitnetBytecodesImplementation": "0xb6E0e5a64C7c02Fa477A5254dca35ED967570DF5",
+            "WitnetPriceFeedsImplementation": "0xd8875D7D3087DEec0103d47d4cE0C4a5414874E1",
             "WitnetRandomnessImplementation": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x4374a050f808d1FF18bCcf73270daE3EdF8D0865",
+            "WitnetRequestBoardImplementation": "0x7ab66AB288A143D4e07Aff9b729165bFb71DB73a",
+            "WitnetRequestFactoryImplementation": "0x6F68A4d58cEd8e094b42511350527Ed628ACB970",
             "WitnetRequestRandomness": "0x65772461641A4A6E8B10c81bae1a132E04e77262"
         }
     },
-    "harmony": {
-        "harmony.testnet#0": {
-            "WitnetLib": "0x315cfa2F1108d1B490302d79AB4a5A99452e5800",
-            "WitnetPriceRouter": "0x08d479a544b05B297454e5CAc133abA3a584AB8E",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
-        }
-    },
-    "hsc": {
-        "hsc.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
-            "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
-            "WitnetRandomness": "0xe1330491bdC37fc4E8801843Bb3015815822F8A8",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
-        }
-    },
     "kava": {
         "kava.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x705E076F3387cFd59708D8D8508CECe3e1C65C87",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
             "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xa45206cC3Ae76630Cc4D47A730590Ff9B6d8Ee54",
+            "WitnetEncodingLib": "0x4743325168af9195Aa5b25e491E9bE87d87E7F93",
+            "WitnetPriceFeedsLib": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
+            "WitnetBytecodesImplementation": "0xd6d4B24219751A7725ce972E68B1067Ee57CC85a",
+            "WitnetPriceFeedsImplementation": "0x6bF6F65Ad0859e9Ee869DAD252a29c9daAa27449",
+            "WitnetRequestBoardImplementation": "0x65772461641A4A6E8B10c81bae1a132E04e77262",
+            "WitnetRequestFactoryImplementation": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF",
+            "WitnetRequestRandomness": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771"
         },
         "kava.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -322,10 +422,22 @@
     },
     "kcc": {
         "kcc.testnet": {
-            "WitnetLib": "0x351cEe820E3A393dCF126FbEE60928a80E99C2e1",
+            "WitnetProxy": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xba7CF62498340fa3734EC51Ca8A69928F0d9E03a",
             "WitnetRandomness": "0x76c72518060952FAec3f90666F047e39E3333f7E",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetEncodingLib": "0xc71A87657b13A370594967A04b4301a3AcEAF007",
+            "WitnetPriceFeedsLib": "0x65772461641A4A6E8B10c81bae1a132E04e77262",
+            "WitnetBytecodesImplementation": "0x35A320906C426eE9C23ffdDD09111B1A3cE1539f",
+            "WitnetPriceFeedsImplementation": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771",
+            "WitnetRequestBoardImplementation": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
+            "WitnetRequestFactoryImplementation": "0x4374a050f808d1FF18bCcf73270daE3EdF8D0865",
+            "WitnetRequestRandomness": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee"
         },
         "kcc.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -336,10 +448,22 @@
     },
     "klaytn": {
         "klaytn.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
             "WitnetRandomness": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xc71A87657b13A370594967A04b4301a3AcEAF007",
+            "WitnetEncodingLib": "0x705E076F3387cFd59708D8D8508CECe3e1C65C87",
+            "WitnetPriceFeedsLib": "0x65772461641A4A6E8B10c81bae1a132E04e77262",
+            "WitnetBytecodesImplementation": "0x12E5FBdaB02cC2336114353CA7BE9e2cc8E4Cc25",
+            "WitnetPriceFeedsImplementation": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
+            "WitnetRequestBoardImplementation": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF",
+            "WitnetRequestFactoryImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestRandomness": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee"
         },
         "klaytn.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -350,10 +474,22 @@
     },
     "meter": {
         "meter.testnet": {
-            "WitnetLib": "0x3a46EF336f619e69dcDCa36A6772596E0fD800B3",
+            "WitnetProxy": "0xc6BdB5fd0113358Aaa6e9B56D6bA3A689cAbf65C",
+            "Create2Factory": "0x2d9dD590b8ebfEe76285f4398dC718D687A4B3e2",
+            "WitnetBytecodes": "0x1C116937844d705C4b0252C5340D4281C5D8D555",
+            "WitnetPriceFeeds": "0x7BBA94e4f3a596AD0E528e51d49CaD789Bd6a22D",
             "WitnetPriceRouter": "0xBbDB82a16d7b66bb076879f766042b914F1C7572",
+            "WitnetRandomness": "0xa254632ae454bae18ff0221c2040aa387f044f0e",
             "WitnetRequestBoard": "0xF99883aa51Fb76E37De6aC37854230d2337D2752",
-            "WitnetRequestBoardImplementation": "0xCd4D275f88d526959D69107BB4f9FB16c5B95a9b"
+            "WitnetRequestFactory": "0x693cC8829Cb9AC14F75E6EbE5878652817C9e6a4",
+            "WitnetErrorsLib": "0x34AD22616E4FfED3EB1e9580C9D7156E1bF8ea7C",
+            "WitnetEncodingLib": "0xb6ac7bd1F0F23DF58Bb1515b4F656709824FA860",
+            "WitnetPriceFeedsLib": "0xaB7FEec38465EA6E1Cf216E188F3Bd11355824dc",
+            "WitnetBytecodesImplementation": "0x6Dc0433F1Cd9E6414f29efEEB775C4d44D7a0C3E",
+            "WitnetPriceFeedsImplementation": "0xD62848a74c0d08BA233D625d8691ea5Fee7d7719",
+            "WitnetRequestBoardImplementation": "0x75EEC6c9e61a1F133939eC99019A179eC2609BF9",
+            "WitnetRequestFactoryImplementation": "0xf1fb7170cB8832213Fb4C506f883bca0a910861D",
+            "WitnetRequestRandomness": "0x3Da39E5348704cB68e4d49034DE9273D91CbA296"
         },
         "meter.mainnet": {
             "WitnetLib": "0x60507Ef497EC61d407cD6Fa1c65FE820620bfA88",
@@ -373,13 +509,14 @@
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
             "WitnetRequestRandomness": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "",
+            "WitnetErrorsLib": "0xc229345B9B95515C69A64842182e37cAdB52A00d",
+            "WitnetEncodingLib": "0x0F17043BB821F609670Dbcce36B6F19FD42829B2",
+            "WitnetPriceFeedsLib": "0x4a0264714E368A6888c5D755F47Bd924549Fd625",
+            "WitnetBytecodesImplementation": "0xA7952bc98AB11b95aa51E52ae61d017D0F084eB8",
+            "WitnetPriceFeedsImplementation": "0x88a456C0Bd557DDA942FBc1DB86C0E35c529A6AE",
             "WitnetRandomnessImplementation": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550"
+            "WitnetRequestBoardImplementation": "0xa579563E3ee6884e3b4cdE1BBb2fF6305686A83f",
+            "WitnetRequestFactoryImplementation": "0x07024BBdFbE0b7560A0f5B49745A372e15954d08"
         },
         "metis.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -399,13 +536,14 @@
             "WitnetRequestBoard": "0x02Cd4089679EAA9431a88170fd784e7dE78A2425",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
             "WitnetRequestRandomness": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetPriceFeedsLib": "0x685528FA605c31aE076e1ee1707041B7Cb356573",
-            "WitnetBytecodesImplementation": "",
+            "WitnetErrorsLib": "0x2163DBCBdbBeC066EF8d8Adab75Af8b0B9A5cfAA",
+            "WitnetEncodingLib": "0x87cB87b649A75c608402Cb9F030129510e201BB4",
+            "WitnetPriceFeedsLib": "0x6f0da7F65Aaa090C48B371ADEfA1997e4e3cE39a",
+            "WitnetBytecodesImplementation": "0x28ABB72A19F65dc5a014453bf26f62250e05CF39",
+            "WitnetPriceFeedsImplementation": "0x2F0912fa566B5B3215e746Dc108d85fDd4A8113A",
             "WitnetRandomnessImplementation": "0x65772461641A4A6E8B10c81bae1a132E04e77262",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0xA9cC3101735b248964e90fA8506219A9CF0b1091"
+            "WitnetRequestBoardImplementation": "0xef978B8CdA6464D0fBaCE5FBC8Ed7A7A8976E094",
+            "WitnetRequestFactoryImplementation": "0x6395d83C9Aa803498980A5ab78217785d4db7bE7"
         },
         "moonbeam.moonriver": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -422,10 +560,22 @@
     },
     "okxchain": {
         "okxchain.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
             "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetPriceFeedsLib": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetBytecodesImplementation": "0x50AA08187D2F648Dd428784AF6489c3F12e942CC",
+            "WitnetPriceFeedsImplementation": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
+            "WitnetRequestBoardImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetRequestRandomness": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF"
         },
         "okxchain.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -436,10 +586,22 @@
     },
     "optimism": {
         "optimism.goerli": {
-            "WitnetLib": "0x02Cd4089679EAA9431a88170fd784e7dE78A2425",
+            "WitnetProxy": "0x1b91eAB33362f10A5F803Fe3f0d181F42caFaac3",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xD9465D38f50f364b3263Cb219e58d4dB2D584530",
             "WitnetRandomness": "0x9E943Ab1FD0D35B3BaDe31AA78D60C485EA1a604",
-            "WitnetRequestBoard": "0x0985FDe9f424fe4f5AC516F66bAf5591e18aCBEb"
+            "WitnetRequestBoard": "0x0985FDe9f424fe4f5AC516F66bAf5591e18aCBEb",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xf6d52770453166de85B6B6260Cf22196bC460E88",
+            "WitnetEncodingLib": "0xB5447342cA17A40e59d410b340ba412E22e36201",
+            "WitnetPriceFeedsLib": "0x6dc0E2AC80550F901cd4d5F5a4C48333A0ca97Ee",
+            "WitnetBytecodesImplementation": "0x078EE90E16e2e5332EDaA87da19d2743cD8C64DD",
+            "WitnetPriceFeedsImplementation": "0x7A6C2Aad6b4b08De09477D0F663b8f90b0db9662",
+            "WitnetRequestBoardImplementation": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetRequestFactoryImplementation": "0x364E2b91a4C7563288C3ccF7256BA172935CC550",
+            "WitnetRequestRandomness": "0x60768ce66aF2f3957e7280c6CfC4ab9c575a7FCF"
         },
         "optimism.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -458,13 +620,14 @@
             "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
             "WitnetRequestRandomness": "0xCFf84e16db3c705aD3C6e96b5575ab9111C874B9",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetPriceFeedsLib": "0x83587BcfD1f75B5D08c4e27F098F99783cc693cb",
-            "WitnetBytecodesImplementation": "",
+            "WitnetErrorsLib": "0xA7389B84D6ABC46b40e88aAD2bbDAf9921649E9E",
+            "WitnetEncodingLib": "0x4326A4EE3B1e35c10660358Ce62DC0fe6914ea45",
+            "WitnetPriceFeedsLib": "0xA149B0ED1D7d506AAB4B48275B9F761336aD916A",
+            "WitnetBytecodesImplementation": "0xd779A106cd2E3e9841499BEfBa9f7d9cA1f52E81",
+            "WitnetPriceFeedsImplementation": "0x632147c657743906F332EB05E5C775B738254e1b",
             "WitnetRandomnessImplementation": "0x24Cc52D0603F161E16c3DB29Da4c2bCc07d17C4b",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x16FEe4c2e8e1A69f31AAD50790015Ffb52F7a88b"
+            "WitnetRequestBoardImplementation": "0x4a51060d9377EeD4e32e5F156A0D14A83d991702",
+            "WitnetRequestFactoryImplementation": "0x5Acb0fEf96A307660c6B2fBdB271af12Dcdb3E68"
         },
         "polygon.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -482,21 +645,34 @@
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
             "WitnetRequestRandomness": "0xC768fD0A0EC5B788524227abEBf4Da021e85908c",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetBytecodesImplementation": "",
-            "WitnetPriceFeedsImplementation": "",
+            "WitnetErrorsLib": "0x07024BBdFbE0b7560A0f5B49745A372e15954d08",
+            "WitnetEncodingLib": "0x8c3e3079e71680B0d678B7380756EDD073B65A34",
+            "WitnetPriceFeedsLib": "0xFB2A291CaE095a63f50846a63aE729506A3D1C40",
+            "WitnetBytecodesImplementation": "0xEeA1423D8cAf1e9440495842613Ec042046065aC",
+            "WitnetPriceFeedsImplementation": "0xA14a1fD9b1C6023f87f3A7E97DbdFdf1a9413D0A",
             "WitnetRandomnessImplementation": "0x3f189fAc162d3CC6d84EF72c8177afAd8f3DBeE1",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0x17189FaFd8Dda06ccc2086e12A11693ee552B807"
+            "WitnetRequestBoardImplementation": "0x80821a058A605d3aa480b236E7f558938010138F",
+            "WitnetRequestFactoryImplementation": "0xB740E58D185558FF4FaaBf430fc87a6801208f38"
         }
     },
     "reef": {
         "reef.testnet": {
-            "WitnetLib": "0x5757040246996BFcDC890CD1CcdE6D414eAbFF74",
-            "WitnetPriceRouter": "0xB600e92DbA7CA66895Aa353d9128514ba47e7896",
-            "WitnetRandomness": "0x3f159F3bD5c27A936E0C897a4584Eb1647a62197",
-            "WitnetRequestBoard": "0x77d64ec18b0a14fefe673e3aa194c816c2383232"
+            "WitnetProxy": "",
+            "Create2Factory": "",
+            "WitnetBytecodes": "",
+            "WitnetPriceFeeds": "",
+            "WitnetPriceRouter": "",
+            "WitnetRandomness": "",
+            "WitnetRequestBoard": "",
+            "WitnetRequestFactory": "",
+            "WitnetRequestRandomness": "",
+            "WitnetErrorsLib": "",
+            "WitnetEncodingLib": "",
+            "WitnetBytecodesImplementation": "",
+            "WitnetPriceFeedsImplementation": "",
+            "WitnetRandomnessImplementation": "",
+            "WitnetRequestBoardImplementation": "",
+            "WitnetRequestFactoryImplementation": ""
         },
         "reef.mainnet": {
             "WitnetParserLib": "0xD3e5A6F4653C5D596d16c947cfA30973C5aa9f34",
@@ -514,38 +690,36 @@
             "WitnetPriceRouter": "0xBfFA2ec6225390C517A1bEB83b27a171C6734294",
             "WitnetRandomness": "0x88888885966F8F77cC6E797aE263C4d091e44A55",
             "WitnetRequestBoard": "0x777777772C24e6CD34B464D1d71616C444254537",
-            "WitnetRequestBoardBypassed": "0x0000007F26760C151AC86695D5846D21e7828B67",
             "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
-            "WitnetErrorsLib": "",
-            "WitnetEncodingLib": "",
-            "WitnetBytecodesImplementation": "0x71D5D7F2ed2436062946727DB84E44588F765D02",
-            "WitnetPriceFeedsImplementation": "",
+            "WitnetErrorsLib": "0x2f8efDF55330248D072020e112aF622083360814",
+            "WitnetEncodingLib": "0xBf4d069EAC99149ecf7B85D97bCB47aaE8f2ec46",
+            "WitnetPriceFeedsLib": "0xdd124EDF6c5f2032bDf2Ff73D4a1C5A74262B61F",
+            "WitnetBytecodesImplementation": "0x305432d212D7a6785aa40E30dF49a4b0b9765637",
+            "WitnetPriceFeedsImplementation": "0xA7a72f112942C721c05377BEfE6984EEB2E5Ce2F",
             "WitnetRandomnessImplementation": "0x3caF71061A07A77347d5c01Fb37b53D5B3865B9A",
-            "WitnetRequestBoardImplementation": "",
-            "WitnetRequestFactoryImplementation": "0xE7f331AB7DFAbd4F9A06807cd9f16128489C28fC",
+            "WitnetRequestBoardImplementation": "0x3280539A77C578C3eF698f53f29CDba00eC9B72E",
+            "WitnetRequestFactoryImplementation": "0x7e3DD1A4E00640B6C716237C181234b3A7342940",
             "WitnetRequestRandomness": "0x578F143c36654DD361FdD51F6D2693b4621ac455"
         }
     },
-    "smartbch": {
-        "smartbch.amber": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
-            "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
-            "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
-        },
-        "smartbch.mainnet": {
-            "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
-            "WitnetPriceRouter": "0xD39D4d972C7E166856c4eb29E54D3548B4597F53",
-            "WitnetRandomness": "0x1ebD93231a7fE551E1d6405404Df34909eff4c2C",
-            "WitnetRequestBoard": "0xd653fbd7c736838289262F0F41A458f35393C88a"
-        }
-    },
     "syscoin": {
         "syscoin.testnet": {
-            "WitnetLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "",
+            "Create2Factory": "",
+            "WitnetBytecodes": "",
+            "WitnetPriceFeeds": "",
             "WitnetPriceRouter": "0x9E943Ab1FD0D35B3BaDe31AA78D60C485EA1a604",
             "WitnetRandomness": "0x56834Ff8D4b27db647Da97CA3bd8540f7fA0e89D",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "",
+            "WitnetRequestRandomness": "",
+            "WitnetErrorsLib": "",
+            "WitnetEncodingLib": "",
+            "WitnetPriceFeedsLib": "",
+            "WitnetBytecodesImplementation": "",
+            "WitnetPriceFeedsImplementation": "",
+            "WitnetRequestBoardImplementation": "",
+            "WitnetRequestFactoryImplementation": ""
         },
         "syscoin.mainnet": {
             "WitnetLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
@@ -556,10 +730,22 @@
     },
     "ultron": {
         "ultron.testnet": {
-            "WitnetParserLib": "0x7D8A488BACB56dA2De17628e26a21fFd97792b81",
+            "WitnetProxy": "0x4374a050f808d1FF18bCcf73270daE3EdF8D0865",
+            "Create2Factory": "0xDe312a6f7fA35320E8DD109c8ea42e82806DC45b",
+            "WitnetBytecodes": "0x0000000e3a3d22d7510B36BdC88994dab11eadc8",
+            "WitnetPriceFeeds": "0x9999999d139bdBFbF25923ba39F63bBFc7593400",
             "WitnetPriceRouter": "0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f",
             "WitnetRandomness": "0xeD074DA2A76FD2Ca90C1508930b4FB4420e413B0",
-            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431"
+            "WitnetRequestBoard": "0x58D8ECe142c60f5707594a7C1D90e46eAE5AF431",
+            "WitnetRequestFactory": "0x1111111FDE7dC956E3d7922Bc779D9E2349Afb63",
+            "WitnetErrorsLib": "0xeDA4f244FEe1D6a3EA0fB2c0Fc6b7D1c49fEF01D",
+            "WitnetEncodingLib": "0xb5F3c9Dc6Ca7C1078cE5c51c1cE030D6BEEd57E2",
+            "WitnetPriceFeedsLib": "0x9f9bAB64229680E170835BC9cC1c96F2C63f7d16",
+            "WitnetBytecodesImplementation": "0x2Ce7843C1c2fce51DE54a06dB3516103fbde0F6D",
+            "WitnetPriceFeedsImplementation": "0x50AA08187D2F648Dd428784AF6489c3F12e942CC",
+            "WitnetRequestBoardImplementation": "0x620e20d91C9b0e11ecAE439E7b85138DA2a1003F",
+            "WitnetRequestFactoryImplementation": "0x4874cb1732eE1167A006E0Ab047D940ACF04D771",
+            "WitnetRequestRandomness": "0xdC101573cB42EB7006Ad6C7E08ce8C91fEAcB62C"
         },
         "ultron.mainnet": {
             "WitnetParserLib": "0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079",
diff --git a/migrations/witnet.settings.js b/migrations/witnet.settings.js
index 66573e190..351ff8624 100644
--- a/migrations/witnet.settings.js
+++ b/migrations/witnet.settings.js
@@ -10,12 +10,21 @@ module.exports = {
     boba: {
       WitnetRequestBoard: "WitnetRequestBoardTrustableOvm2",
     },
+    conflux: {
+      WitnetRequestFactory: "WitnetRequestFactoryCfxCore",
+    },
     optimism: {
       WitnetRequestBoard: "WitnetRequestBoardTrustableOvm2",
     },
+    "polygon.zkevm.goerli": {
+      WitnetBytecodes: "WitnetBytecodesNoSha256",
+    },
     reef: {
       WitnetRequestBoard: "WitnetRequestBoardTrustableReef",
     },
+    scroll: {
+      WitnetBytecodes: "WitnetBytecodesNoSha256",
+    }
   },
   compilers: {
     default: {
@@ -29,11 +38,6 @@ module.exports = {
         },
       },
     },
-    conflux: {
-      solc: {
-        evmVersion: "petersburg",
-      },
-    },
   },
   constructorParams: {
     default: {
@@ -134,6 +138,10 @@ module.exports = {
         host: "localhost",
         port: 8545,
         skipDryRun: true,
+        verify: {
+          apiUrl: "https://api-goerli.etherscan.io/",
+          browserURL: "https://goerli.etherscan.io/",
+        },
       },
       "ethereum.kovan": {
         network_id: 42,
@@ -165,6 +173,10 @@ module.exports = {
         host: "localhost",
         port: 8517,
         skipDryRun: true,
+        verify: {
+          apiUrl: "https://api-goerli.arbiscan.io/",
+          browserURL: "https://goerli.arbiscan.io/",
+        },
       },
       "arbitrum.one": {
         network_id: 42161,
@@ -173,7 +185,7 @@ module.exports = {
         skipDryRun: true,
         verify: {
           apiUrl: "https://api.arbiscan.io/api",
-          browserURL: "https://arbiscan.io/address",
+          browserURL: "https://arbiscan.io/",
         },
       },
     },
@@ -191,6 +203,11 @@ module.exports = {
         port: 8533,
         skipDryRun: true,
         gasPrice: 30 * 10 ** 9,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "https://api-testnet.snowtrace.io/",
+          browserURL: "https://testnet.snowtrace.io/",
+        },
       },
     },
     boba: {
@@ -216,29 +233,21 @@ module.exports = {
           apiKey: "MY_API_KEY",
         },
       },
-      "boba.moonbeam.bobabase": {
-        network_id: 1297,
-        host: "localhost",
-        port: 8518,
-        skipDryRun: true,
-      },
       "boba.ethereum.mainnet": {
         network_id: 288,
         host: "localhost",
         port: 9539,
         skipDryRun: true,
       },
-      "boba.ethereum.rinkeby": {
-        network_id: 28,
-        host: "localhost",
-        port: 8539,
-        skipDryRun: true,
-      },
       "boba.ethereum.goerli": {
         network_id: 2888,
         host: "localhost",
         port: 8515,
         skipDryRun: true,
+        verify: {
+          apiUrl: "https://api-testnet.bobascan.com/api",
+          browserURL: "https://testnet.bobascan.com/",
+        },
       },
     },
     celo: {
@@ -247,6 +256,11 @@ module.exports = {
         host: "localhost",
         port: 8538,
         skipDryRun: true,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "https://explorer.celo.org/alfajores/api",
+          browserURL: "https://explorer.celo.org/alfajores/",
+        },
       },
       "celo.mainnet": {
         network_id: 42220,
@@ -293,6 +307,10 @@ module.exports = {
         port: 8530,
         network_id: 338,
         skipDryRun: true,
+        verify: {
+          apiUrl: "https://cronos.org/explorer/testnet3/api",
+          browserURL: "https://cronos.org/explorer/testnet3",
+        },
       },
       "cronos.mainnet": {
         host: "localhost",
@@ -323,6 +341,12 @@ module.exports = {
         port: 8519,
         network_id: 568,
         skipDryRun: true,
+        gas: 6000000,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "http://explorer-testnet.dogechain.dog/api",
+          browserURL: "https://explorer-testnet.dogechain.dog/",
+        },
       },
       "dogechain.mainnet": {
         host: "localhost",
@@ -338,6 +362,7 @@ module.exports = {
         network_id: 21,
         skipDryRun: true,
         verify: {
+          apiKey: "MY_API_KEY",
           apiUrl: "https://esc-testnet.elastos.io/api",
           browserURL: "https://esc-testnet.elastos.io/address",
         },
@@ -407,6 +432,11 @@ module.exports = {
         port: 8526,
         network_id: 2221,
         skipDryRun: true,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "https://explorer.testnet.kava.io/api",
+          browserURL: "https://explorer.testnet.kava.io/",
+        },
       },
       "kava.mainnet": {
         host: "localhost",
@@ -422,6 +452,11 @@ module.exports = {
         network_id: 322,
         gasPrice: 10 ** 10,
         skipDryRun: true,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "https://scan-testnet.kcc.network/api",
+          browserURL: "https://scan-testnet.kcc.network/",
+        },
       },
       "kcc.mainnet": {
         host: "localhost",
@@ -462,7 +497,7 @@ module.exports = {
         verify: {
           apiKey: "MY_API_KEY",
           apiUrl: "https://goerli.explorer.metisdevops.link/api",
-          explorerUrl: "https://goerli.explorer.metisdevops.link//address",
+          explorerUrl: "https://goerli.explorer.metisdevops.link/address",
         },
       },
     },
@@ -521,6 +556,11 @@ module.exports = {
         port: 8520,
         network_id: 420,
         skipDryRun: true,
+        verify: {
+          apiKey: "MY_API_KEY",
+          apiUrl: "https://optimism-goerli.blockscout.com/api",
+          explorerUrl: "https://optimism-goerli.blockscout.com/",
+        },
       },
       "optimism.mainnet": {
         host: "localhost",
@@ -548,7 +588,7 @@ module.exports = {
         network_id: 1442,
         skipDryRun: true,
         verify: {
-          apiUrl: "http://api-testnet-zkevm.polygonscan.com/api",
+          apiUrl: "https://api-testnet-zkevm.polygonscan.com/api",
           explorerUrl: "https://testnet-zkevm.polygonscan.com/address",
         },
       },
@@ -575,9 +615,9 @@ module.exports = {
         skipDryRun: true,
         gasPrice: 3000000,
         verify: {
+          apiKey: "abc",
           apiUrl: "https://blockscout.scroll.io/api",
-          apiKey: "MY_API_KEY",
-          explorerUrl: "https://blockscout.scroll.io/address",
+          explorerUrl: "https://blockscout.scroll.io/",
         },
       },
     },
diff --git a/truffle-config.js b/truffle-config.js
index efe999e45..44fed7e89 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -39,6 +39,8 @@ module.exports = {
   ],
   api_keys: {
     arbiscan: process.env.ARBISCAN_API_KEY,
+    bobascan: process.env.BOBASCAN_API_KEY,
+    cronos: process.env.CRONOSCAN_API_KEY,
     etherscan: process.env.ETHERSCAN_API_KEY,
     moonscan: process.env.MOONSCAN_API_KEY,
     polygonscan: process.env.POLYGONSCAN_API_KEY,