{
  "_format": "hh-sol-artifact-1",
  "contractName": "BlockBuilderRegistry",
  "sourceName": "contracts/block-builder-registry/BlockBuilderRegistry.sol",
  "abi": [
    {
      "inputs": [],
      "stateMutability": "nonpayable",
      "type": "constructor"
    },
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      "inputs": [
        {
          "internalType": "address",
          "name": "target",
          "type": "address"
        }
      ],
      "name": "AddressEmptyCode",
      "type": "error"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "implementation",
          "type": "address"
        }
      ],
      "name": "ERC1967InvalidImplementation",
      "type": "error"
    },
    {
      "inputs": [],
      "name": "ERC1967NonPayable",
      "type": "error"
    },
    {
      "inputs": [],
      "name": "FailedCall",
      "type": "error"
    },
    {
      "inputs": [],
      "name": "InvalidInitialization",
      "type": "error"
    },
    {
      "inputs": [],
      "name": "NotInitializing",
      "type": "error"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        }
      ],
      "name": "OwnableInvalidOwner",
      "type": "error"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        }
      ],
      "name": "OwnableUnauthorizedAccount",
      "type": "error"
    },
    {
      "inputs": [],
      "name": "UUPSUnauthorizedCallContext",
      "type": "error"
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    {
      "inputs": [
        {
          "internalType": "bytes32",
          "name": "slot",
          "type": "bytes32"
        }
      ],
      "name": "UUPSUnsupportedProxiableUUID",
      "type": "error"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "blockBuilder",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "string",
          "name": "url",
          "type": "string"
        }
      ],
      "name": "BlockBuilderHeartbeat",
      "type": "event"
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      "inputs": [
        {
          "indexed": false,
          "internalType": "uint64",
          "name": "version",
          "type": "uint64"
        }
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      "name": "Initialized",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "previousOwner",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "newOwner",
          "type": "address"
        }
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      "name": "OwnershipTransferred",
      "type": "event"
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    {
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        {
          "indexed": true,
          "internalType": "address",
          "name": "implementation",
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      "type": "event"
    },
    {
      "inputs": [],
      "name": "UPGRADE_INTERFACE_VERSION",
      "outputs": [
        {
          "internalType": "string",
          "name": "",
          "type": "string"
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      "inputs": [
        {
          "internalType": "string",
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      "stateMutability": "nonpayable",
      "type": "function"
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    {
      "inputs": [
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          "internalType": "address",
          "name": "admin",
          "type": "address"
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      "stateMutability": "nonpayable",
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      "inputs": [],
      "name": "owner",
      "outputs": [
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          "internalType": "address",
          "name": "",
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      ],
      "stateMutability": "view",
      "type": "function"
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    {
      "inputs": [],
      "name": "proxiableUUID",
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          "name": "",
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      "inputs": [],
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      "inputs": [
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      "name": "upgradeToAndCall",
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      "stateMutability": "payable",
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