{
  "contractName": "BaseRegistrarImplementation",
  "abi": [
    {
      "constant": true,
      "inputs": [
        {
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "getApproved",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "approve",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "from",
          "type": "address"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "transferFrom",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "ens",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "from",
          "type": "address"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "safeTransferFrom",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "owner",
          "type": "address"
        }
      ],
      "name": "balanceOf",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [],
      "name": "renounceOwnership",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "owner",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "isOwner",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "approved",
          "type": "bool"
        }
      ],
      "name": "setApprovalForAll",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "from",
          "type": "address"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "tokenId",
          "type": "uint256"
        },
        {
          "name": "_data",
          "type": "bytes"
        }
      ],
      "name": "safeTransferFrom",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "GRACE_PERIOD",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "name": "controllers",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "baseNode",
      "outputs": [
        {
          "name": "",
          "type": "bytes32"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "operator",
          "type": "address"
        }
      ],
      "name": "isApprovedForAll",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "newOwner",
          "type": "address"
        }
      ],
      "name": "transferOwnership",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "name": "_ens",
          "type": "address"
        },
        {
          "name": "_baseNode",
          "type": "bytes32"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "constructor"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "controller",
          "type": "address"
        }
      ],
      "name": "ControllerAdded",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "controller",
          "type": "address"
        }
      ],
      "name": "ControllerRemoved",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "id",
          "type": "uint256"
        },
        {
          "indexed": true,
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": false,
          "name": "expires",
          "type": "uint256"
        }
      ],
      "name": "NameMigrated",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "id",
          "type": "uint256"
        },
        {
          "indexed": true,
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": false,
          "name": "expires",
          "type": "uint256"
        }
      ],
      "name": "NameRegistered",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "id",
          "type": "uint256"
        },
        {
          "indexed": false,
          "name": "expires",
          "type": "uint256"
        }
      ],
      "name": "NameRenewed",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "previousOwner",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "newOwner",
          "type": "address"
        }
      ],
      "name": "OwnershipTransferred",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "from",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "to",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "approved",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "operator",
          "type": "address"
        },
        {
          "indexed": false,
          "name": "approved",
          "type": "bool"
        }
      ],
      "name": "ApprovalForAll",
      "type": "event"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "ownerOf",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "controller",
          "type": "address"
        }
      ],
      "name": "addController",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "controller",
          "type": "address"
        }
      ],
      "name": "removeController",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "resolver",
          "type": "address"
        }
      ],
      "name": "setResolver",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        }
      ],
      "name": "nameExpires",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        }
      ],
      "name": "available",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        },
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "duration",
          "type": "uint256"
        }
      ],
      "name": "register",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        },
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "duration",
          "type": "uint256"
        }
      ],
      "name": "registerOnly",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        },
        {
          "name": "duration",
          "type": "uint256"
        }
      ],
      "name": "renew",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "id",
          "type": "uint256"
        },
        {
          "name": "owner",
          "type": "address"
        }
      ],
      "name": "reclaim",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "interfaceID",
          "type": "bytes4"
        }
      ],
      "name": "supportsInterface",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    }
  ],
  "metadata": "{\"compiler\":{\"version\":\"0.5.8+commit.23d335f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":true,\"inputs\":[{\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"owner\",\"type\":\"address\"},{\"name\":\"duration\",\"type\":\"uint256\"}],\"name\":\"registerOnly\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"reclaim\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"ens\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"resolver\",\"type\":\"address\"}],\"name\":\"setResolver\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"isOwner\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"}],\"name\":\"available\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"controller\",\"type\":\"address\"}],\"name\":\"addController\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"},{\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"GRACE_PERIOD\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"duration\",\"type\":\"uint256\"}],\"name\":\"renew\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"}],\"name\":\"nameExpires\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"controllers\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"baseNode\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"owner\",\"type\":\"address\"},{\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"controller\",\"type\":\"address\"}],\"name\":\"removeController\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"owner\",\"type\":\"address\"},{\"name\":\"duration\",\"type\":\"uint256\"}],\"name\":\"register\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"_ens\",\"type\":\"address\"},{\"name\":\"_baseNode\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"controller\",\"type\":\"address\"}],\"name\":\"ControllerAdded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"controller\",\"type\":\"address\"}],\"name\":\"ControllerRemoved\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"id\",\"type\":\"uint256\"},{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"expires\",\"type\":\"uint256\"}],\"name\":\"NameMigrated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"id\",\"type\":\"uint256\"},{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"expires\",\"type\":\"uint256\"}],\"name\":\"NameRegistered\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"id\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"expires\",\"type\":\"uint256\"}],\"name\":\"NameRenewed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"}],\"devdoc\":{\"methods\":{\"approve(address,uint256)\":{\"details\":\"Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.\",\"params\":{\"to\":\"address to be approved for the given token ID\",\"tokenId\":\"uint256 ID of the token to be approved\"}},\"balanceOf(address)\":{\"details\":\"Gets the balance of the specified address\",\"params\":{\"owner\":\"address to query the balance of\"},\"return\":\"uint256 representing the amount owned by the passed address\"},\"getApproved(uint256)\":{\"details\":\"Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the approval of\"},\"return\":\"address currently approved for the given token ID\"},\"isApprovedForAll(address,address)\":{\"details\":\"Tells whether an operator is approved by a given owner\",\"params\":{\"operator\":\"operator address which you want to query the approval of\",\"owner\":\"owner address which you want to query the approval of\"},\"return\":\"bool whether the given operator is approved by the given owner\"},\"isOwner()\":{\"return\":\"true if `msg.sender` is the owner of the contract.\"},\"owner()\":{\"return\":\"the address of the owner.\"},\"ownerOf(uint256)\":{\"details\":\"Gets the owner of the specified token ID. Names become unowned     when their registration expires.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the owner of\"},\"return\":\"address currently marked as the owner of the given token ID\"},\"reclaim(uint256,address)\":{\"details\":\"Reclaim ownership of a name in ENS, if you own it in the registrar.\"},\"register(uint256,address,uint256)\":{\"details\":\"Register a name.\",\"params\":{\"duration\":\"Duration in seconds for the registration.\",\"id\":\"The token ID (keccak256 of the label).\",\"owner\":\"The address that should own the registration.\"}},\"registerOnly(uint256,address,uint256)\":{\"details\":\"Register a name, without modifying the registry.\",\"params\":{\"duration\":\"Duration in seconds for the registration.\",\"id\":\"The token ID (keccak256 of the label).\",\"owner\":\"The address that should own the registration.\"}},\"renounceOwnership()\":{\"details\":\"Allows the current owner to relinquish control of the contract.\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted.     * Requires the msg sender to be the owner, approved, or operator\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg sender to be the owner, approved, or operator\",\"params\":{\"_data\":\"bytes data to send along with a safe transfer check\",\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"setApprovalForAll(address,bool)\":{\"details\":\"Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf\",\"params\":{\"approved\":\"representing the status of the approval to be set\",\"to\":\"operator address to set the approval\"}},\"transferFrom(address,address,uint256)\":{\"details\":\"Transfers the ownership of a given token ID to another address Usage of this method is discouraged, use `safeTransferFrom` whenever possible Requires the msg sender to be the owner, approved, or operator\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"transferOwnership(address)\":{\"details\":\"Allows the current owner to transfer control of the contract to a newOwner.\",\"params\":{\"newOwner\":\"The address to transfer ownership to.\"}}}},\"userdoc\":{\"methods\":{\"renounceOwnership()\":{\"notice\":\"Renouncing to ownership will leave the contract without an owner. It will not be possible to call the functions with the `onlyOwner` modifier anymore.\"}}}},\"settings\":{\"compilationTarget\":{\"/Users/makoto/work/ens/ethregistrar/contracts/BaseRegistrarImplementation.sol\":\"BaseRegistrarImplementation\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/makoto/work/ens/ethregistrar/contracts/BaseRegistrar.sol\":{\"keccak256\":\"0x8f8f496603d868fdf3ddf31c54fb6eed6a865f2adbf568fe0b3d999d4fa667f4\",\"urls\":[\"bzzr://b5ff38b350af3a3ab768429dd91c011fa8b67c8b50169d2ea9f907a428f74d2f\"]},\"/Users/makoto/work/ens/ethregistrar/contracts/BaseRegistrarImplementation.sol\":{\"keccak256\":\"0xb536cb0800dc30e1a911ac804767801a5645206cd85400d1dd98f684cec9be08\",\"urls\":[\"bzzr://1abd8eb8c719d38763e0114c27261a1bc265e08509d1417dba8dbff2f9623723\"]},\"@ensdomains/ens/contracts/ENS.sol\":{\"keccak256\":\"0x10b88673d8c180cd62523be4fec7607c65594eb4f0c561fa0fbc0784422b4871\",\"urls\":[\"bzzr://8e5a54eed92d9bf8824175cf337e0df46e647deb0864eb5f091ea0b8132568f6\"]},\"openzeppelin-solidity/contracts/introspection/ERC165.sol\":{\"keccak256\":\"0x9da23588f58d0fa67097984e151bdaa6aa69c5e192bae17b44a90b0cfc194736\",\"urls\":[\"bzzr://261f787ff391c9079937a4623cc79ff8e31aac23112115b04ef241ee23f30524\"]},\"openzeppelin-solidity/contracts/introspection/IERC165.sol\":{\"keccak256\":\"0xbbb6159006ae3639daea09f7d63987816d6cf3a99f52af919363e025d3abf3b8\",\"urls\":[\"bzzr://8368cc15cc427ce17e8f398860826b6332992cb23048b25f541dbc2a5f0df5d4\"]},\"openzeppelin-solidity/contracts/math/SafeMath.sol\":{\"keccak256\":\"0x965012d27b4262d7a41f5028cbb30c51ebd9ecd4be8fb30380aaa7a3c64fbc8b\",\"urls\":[\"bzzr://41ca38f6b0fa4b77b0feec43e422cfbec48b7eb38a41edf0b85c77e8d9a296b1\"]},\"openzeppelin-solidity/contracts/ownership/Ownable.sol\":{\"keccak256\":\"0x980de387a1a020a498f53d00f89fecebb12c949a17e8f160093c0303ede2b786\",\"urls\":[\"bzzr://08894efa2a557982070beda6a81a032407e70532d24bdafe80d39660c74904d9\"]},\"openzeppelin-solidity/contracts/token/ERC721/ERC721.sol\":{\"keccak256\":\"0x0546fa662082b36ac9cbd418c0722a3c52718b9dc3fe3e284081d73f48036228\",\"urls\":[\"bzzr://7a3a06efd002d9f7ef33f5c5242c9748edd9f71e7520394c001b5f025402ea6b\"]},\"openzeppelin-solidity/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0x1f059ee943273719130df645fa38069b792988e8b732585528d5b1265f5aa046\",\"urls\":[\"bzzr://5ca0242354a69ad26d8baa954cb650a56ed1f9c62bb32474a785c8327a77abfc\"]},\"openzeppelin-solidity/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0x5e7281dbd14cf07af0974ce830c6242062cd430b70658878d49b5f5c1e2ec0aa\",\"urls\":[\"bzzr://f3677e2b02a3224666e176b0fbb4096564c0548a6d08517d4e19b6a29d604d98\"]},\"openzeppelin-solidity/contracts/utils/Address.sol\":{\"keccak256\":\"0x5c731061b804fa256fc8c05150eafe5d20b6bb94541a8f187912bf84f7033f34\",\"urls\":[\"bzzr://63fc4af0d7a99a770925b96a6cf48f25fc00d30274266f82db05f30baa238267\"]}},\"version\":1}",
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  "source": "pragma solidity ^0.5.0;\n\nimport \"@ensdomains/ens/contracts/ENS.sol\";\nimport \"openzeppelin-solidity/contracts/token/ERC721/ERC721.sol\";\nimport \"./BaseRegistrar.sol\";\n\ncontract BaseRegistrarImplementation is BaseRegistrar, ERC721 {\n    // A map of expiry times\n    mapping(uint256=>uint) expiries;\n\n    bytes4 constant private INTERFACE_META_ID = bytes4(keccak256(\"supportsInterface(bytes4)\"));\n    bytes4 constant private ERC721_ID = bytes4(\n        keccak256(\"balanceOf(address)\") ^\n        keccak256(\"ownerOf(uint256)\") ^\n        keccak256(\"approve(address,uint256)\") ^\n        keccak256(\"getApproved(uint256)\") ^\n        keccak256(\"setApprovalForAll(address,bool)\") ^\n        keccak256(\"isApprovedForAll(address,address)\") ^\n        keccak256(\"transferFrom(address,address,uint256)\") ^\n        keccak256(\"safeTransferFrom(address,address,uint256)\") ^\n        keccak256(\"safeTransferFrom(address,address,uint256,bytes)\")\n    );\n    bytes4 constant private RECLAIM_ID = bytes4(keccak256(\"reclaim(uint256,address)\"));\n\n    constructor(ENS _ens, bytes32 _baseNode) public {\n        ens = _ens;\n        baseNode = _baseNode;\n    }\n\n    modifier live {\n        require(ens.owner(baseNode) == address(this));\n        _;\n    }\n\n    modifier onlyController {\n        require(controllers[msg.sender]);\n        _;\n    }\n\n    /**\n     * @dev Gets the owner of the specified token ID. Names become unowned\n     *      when their registration expires.\n     * @param tokenId uint256 ID of the token to query the owner of\n     * @return address currently marked as the owner of the given token ID\n     */\n    function ownerOf(uint256 tokenId) public view returns (address) {\n        require(expiries[tokenId] > now);\n        return super.ownerOf(tokenId);\n    }\n\n    // Authorises a controller, who can register and renew domains.\n    function addController(address controller) external onlyOwner {\n        controllers[controller] = true;\n        emit ControllerAdded(controller);\n    }\n\n    // Revoke controller permission for an address.\n    function removeController(address controller) external onlyOwner {\n        controllers[controller] = false;\n        emit ControllerRemoved(controller);\n    }\n\n    // Set the resolver for the TLD this registrar manages.\n    function setResolver(address resolver) external onlyOwner {\n        ens.setResolver(baseNode, resolver);\n    }\n\n    // Returns the expiration timestamp of the specified id.\n    function nameExpires(uint256 id) external view returns(uint) {\n        return expiries[id];\n    }\n\n    // Returns true iff the specified name is available for registration.\n    function available(uint256 id) public view returns(bool) {\n        // Not available if it's registered here or in its grace period.\n        return expiries[id] + GRACE_PERIOD < now;\n    }\n\n    /**\n     * @dev Register a name.\n     * @param id The token ID (keccak256 of the label).\n     * @param owner The address that should own the registration.\n     * @param duration Duration in seconds for the registration.\n     */\n    function register(uint256 id, address owner, uint duration) external returns(uint) {\n      return _register(id, owner, duration, true);\n    }\n\n    /**\n     * @dev Register a name, without modifying the registry.\n     * @param id The token ID (keccak256 of the label).\n     * @param owner The address that should own the registration.\n     * @param duration Duration in seconds for the registration.\n     */\n    function registerOnly(uint256 id, address owner, uint duration) external returns(uint) {\n      return _register(id, owner, duration, false);\n    }\n\n    function _register(uint256 id, address owner, uint duration, bool updateRegistry) internal live onlyController returns(uint) {\n        require(available(id));\n        require(now + duration + GRACE_PERIOD > now + GRACE_PERIOD); // Prevent future overflow\n\n        expiries[id] = now + duration;\n        if(_exists(id)) {\n            // Name was previously owned, and expired\n            _burn(id);\n        }\n        _mint(owner, id);\n        if(updateRegistry) {\n            ens.setSubnodeOwner(baseNode, bytes32(id), owner);\n        }\n\n        emit NameRegistered(id, owner, now + duration);\n\n        return now + duration;\n    }\n\n    function renew(uint256 id, uint duration) external live onlyController returns(uint) {\n        require(expiries[id] + GRACE_PERIOD >= now); // Name must be registered here or in grace period\n        require(expiries[id] + duration + GRACE_PERIOD > duration + GRACE_PERIOD); // Prevent future overflow\n\n        expiries[id] += duration;\n        emit NameRenewed(id, expiries[id]);\n        return expiries[id];\n    }\n\n    /**\n     * @dev Reclaim ownership of a name in ENS, if you own it in the registrar.\n     */\n    function reclaim(uint256 id, address owner) external live {\n        require(_isApprovedOrOwner(msg.sender, id));\n        ens.setSubnodeOwner(baseNode, bytes32(id), owner);\n    }\n\n    function supportsInterface(bytes4 interfaceID) external view returns (bool) {\n        return interfaceID == INTERFACE_META_ID ||\n               interfaceID == ERC721_ID ||\n               interfaceID == RECLAIM_ID;\n    }\n}\n",
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            "kind": "function",
            "modifiers": [],
            "name": "supportsInterface",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 558,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 557,
                  "name": "interfaceID",
                  "nodeType": "VariableDeclaration",
                  "scope": 575,
                  "src": "4957:18:2",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bytes4",
                    "typeString": "bytes4"
                  },
                  "typeName": {
                    "id": 556,
                    "name": "bytes4",
                    "nodeType": "ElementaryTypeName",
                    "src": "4957:6:2",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bytes4",
                      "typeString": "bytes4"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "4956:20:2"
            },
            "returnParameters": {
              "id": 561,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 560,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 575,
                  "src": "5000:4:2",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 559,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "5000:4:2",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "4999:6:2"
            },
            "scope": 576,
            "src": "4930:219:2",
            "stateMutability": "view",
            "superFunction": 11939,
            "visibility": "external"
          }
        ],
        "scope": 577,
        "src": "166:4985:2"
      }
    ],
    "src": "0:5152:2"
  },
  "compiler": {
    "name": "solc",
    "version": "0.5.8+commit.23d335f2.Emscripten.clang"
  },
  "networks": {},
  "schemaVersion": "3.0.13",
  "updatedAt": "2020-04-06T10:03:41.399Z",
  "devdoc": {
    "methods": {
      "approve(address,uint256)": {
        "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.",
        "params": {
          "to": "address to be approved for the given token ID",
          "tokenId": "uint256 ID of the token to be approved"
        }
      },
      "balanceOf(address)": {
        "details": "Gets the balance of the specified address",
        "params": {
          "owner": "address to query the balance of"
        },
        "return": "uint256 representing the amount owned by the passed address"
      },
      "getApproved(uint256)": {
        "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.",
        "params": {
          "tokenId": "uint256 ID of the token to query the approval of"
        },
        "return": "address currently approved for the given token ID"
      },
      "isApprovedForAll(address,address)": {
        "details": "Tells whether an operator is approved by a given owner",
        "params": {
          "operator": "operator address which you want to query the approval of",
          "owner": "owner address which you want to query the approval of"
        },
        "return": "bool whether the given operator is approved by the given owner"
      },
      "isOwner()": {
        "return": "true if `msg.sender` is the owner of the contract."
      },
      "owner()": {
        "return": "the address of the owner."
      },
      "ownerOf(uint256)": {
        "details": "Gets the owner of the specified token ID. Names become unowned     when their registration expires.",
        "params": {
          "tokenId": "uint256 ID of the token to query the owner of"
        },
        "return": "address currently marked as the owner of the given token ID"
      },
      "reclaim(uint256,address)": {
        "details": "Reclaim ownership of a name in ENS, if you own it in the registrar."
      },
      "register(uint256,address,uint256)": {
        "details": "Register a name.",
        "params": {
          "duration": "Duration in seconds for the registration.",
          "id": "The token ID (keccak256 of the label).",
          "owner": "The address that should own the registration."
        }
      },
      "registerOnly(uint256,address,uint256)": {
        "details": "Register a name, without modifying the registry.",
        "params": {
          "duration": "Duration in seconds for the registration.",
          "id": "The token ID (keccak256 of the label).",
          "owner": "The address that should own the registration."
        }
      },
      "renounceOwnership()": {
        "details": "Allows the current owner to relinquish control of the contract."
      },
      "safeTransferFrom(address,address,uint256)": {
        "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted.     * Requires the msg sender to be the owner, approved, or operator",
        "params": {
          "from": "current owner of the token",
          "to": "address to receive the ownership of the given token ID",
          "tokenId": "uint256 ID of the token to be transferred"
        }
      },
      "safeTransferFrom(address,address,uint256,bytes)": {
        "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg sender to be the owner, approved, or operator",
        "params": {
          "_data": "bytes data to send along with a safe transfer check",
          "from": "current owner of the token",
          "to": "address to receive the ownership of the given token ID",
          "tokenId": "uint256 ID of the token to be transferred"
        }
      },
      "setApprovalForAll(address,bool)": {
        "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf",
        "params": {
          "approved": "representing the status of the approval to be set",
          "to": "operator address to set the approval"
        }
      },
      "transferFrom(address,address,uint256)": {
        "details": "Transfers the ownership of a given token ID to another address Usage of this method is discouraged, use `safeTransferFrom` whenever possible Requires the msg sender to be the owner, approved, or operator",
        "params": {
          "from": "current owner of the token",
          "to": "address to receive the ownership of the given token ID",
          "tokenId": "uint256 ID of the token to be transferred"
        }
      },
      "transferOwnership(address)": {
        "details": "Allows the current owner to transfer control of the contract to a newOwner.",
        "params": {
          "newOwner": "The address to transfer ownership to."
        }
      }
    }
  },
  "userdoc": {
    "methods": {
      "renounceOwnership()": {
        "notice": "Renouncing to ownership will leave the contract without an owner. It will not be possible to call the functions with the `onlyOwner` modifier anymore."
      }
    }
  }
}