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Contract

0xab04e02792D86C522A07B19548a928D01fee2FC2
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

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Transaction Hash
Method
Block
From
To
Withdraw Noun163241022023-01-03 5:14:59614 days ago1672722899IN
0xab04e027...01fee2FC2
0 ETH0.0036044215.31036122
Create Bid163240562023-01-03 5:05:47614 days ago1672722347IN
0xab04e027...01fee2FC2
0 ETH0.0016712615.79813747
Create Bid163240202023-01-03 4:58:35614 days ago1672721915IN
0xab04e027...01fee2FC2
0 ETH0.0017660714.37130115
Withdraw Noun163024712022-12-31 4:51:11617 days ago1672462271IN
0xab04e027...01fee2FC2
0 ETH0.0042186617.91944167
Create Bid163024122022-12-31 4:38:59617 days ago1672461539IN
0xab04e027...01fee2FC2
0 ETH0.002407519.59086541
Withdraw Noun162086372022-12-18 2:36:59630 days ago1671331019IN
0xab04e027...01fee2FC2
0 ETH0.0077379732.86825775
Create Bid162086012022-12-18 2:29:47630 days ago1671330587IN
0xab04e027...01fee2FC2
0 ETH0.00276222.47557779
Create Bid161868852022-12-15 1:42:47633 days ago1671068567IN
0xab04e027...01fee2FC2
0 ETH0.0017661614.37201938
Withdraw Noun161365922022-12-08 1:04:47640 days ago1670461487IN
0xab04e027...01fee2FC2
0 ETH0.0033499514.22947075
Create Bid161365632022-12-08 0:58:59640 days ago1670461139IN
0xab04e027...01fee2FC2
0 ETH0.0017140313.94781212
Withdraw Noun161294992022-12-07 1:01:11641 days ago1670374871IN
0xab04e027...01fee2FC2
0 ETH0.0054345423.08405936
Create Bid161294662022-12-07 0:54:35641 days ago1670374475IN
0xab04e027...01fee2FC2
0 ETH0.0016616413.52147178
Create Bid161222752022-12-06 0:50:11642 days ago1670287811IN
0xab04e027...01fee2FC2
0 ETH0.0013824113.06765301
Create Bid161222552022-12-06 0:46:11642 days ago1670287571IN
0xab04e027...01fee2FC2
0 ETH0.0014606113.80682951
Create Bid161222362022-12-06 0:42:23642 days ago1670287343IN
0xab04e027...01fee2FC2
0 ETH0.0015697612.77385553
Withdraw Noun160953532022-12-02 6:32:59646 days ago1669962779IN
0xab04e027...01fee2FC2
0 ETH0.0031777812.72370059
Create Bid160935232022-12-02 0:25:23646 days ago1669940723IN
0xab04e027...01fee2FC2
0 ETH0.0014953112.16804467
Transfer Ownersh...160851822022-11-30 20:27:47647 days ago1669840067IN
0xab04e027...01fee2FC2
0 ETH0.0004405815.42562582
Exec Transaction160851822022-11-30 20:27:47647 days ago1669840067IN
0xab04e027...01fee2FC2
0 ETH0.0020699415.42562582
0x60c06040160851822022-11-30 20:27:47647 days ago1669840067IN
 Create: Autobidder
0 ETH0.0198295315.42562582

Latest 25 internal transactions (View All)

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Parent Transaction Hash Block From To
163712682023-01-09 19:14:59607 days ago1673291699
0xab04e027...01fee2FC2
0.91436934 ETH
163241022023-01-03 5:14:59614 days ago1672722899
0xab04e027...01fee2FC2
0.00439156 ETH
163241022023-01-03 5:14:59614 days ago1672722899
0xab04e027...01fee2FC2
0.308856 ETH
163240562023-01-03 5:05:47614 days ago1672722347
0xab04e027...01fee2FC2
0.00167073 ETH
163240562023-01-03 5:05:47614 days ago1672722347
0xab04e027...01fee2FC2
30.8856 ETH
163240402023-01-03 5:02:35614 days ago1672722155
0xab04e027...01fee2FC2
29.682 ETH
163240202023-01-03 4:58:35614 days ago1672721915
0xab04e027...01fee2FC2
0.00176558 ETH
163240202023-01-03 4:58:35614 days ago1672721915
0xab04e027...01fee2FC2
29.682 ETH
163174782023-01-02 7:04:47615 days ago1672643087
0xab04e027...01fee2FC2
30 ETH
163024712022-12-31 4:51:11617 days ago1672462271
0xab04e027...01fee2FC2
0.00513994 ETH
163024712022-12-31 4:51:11617 days ago1672462271
0xab04e027...01fee2FC2
0.2958 ETH
163024122022-12-31 4:38:59617 days ago1672461539
0xab04e027...01fee2FC2
0.00240683 ETH
163024122022-12-31 4:38:59617 days ago1672461539
0xab04e027...01fee2FC2
29.58 ETH
162924992022-12-29 19:27:47618 days ago1672342067
0xab04e027...01fee2FC2
32 ETH
162191342022-12-19 13:47:11629 days ago1671457631
0xab04e027...01fee2FC2
30.5379154 ETH
162086372022-12-18 2:36:59630 days ago1671331019
0xab04e027...01fee2FC2
0.00942779 ETH
162086372022-12-18 2:36:59630 days ago1671331019
0xab04e027...01fee2FC2
0.2958 ETH
162086012022-12-18 2:29:47630 days ago1671330587
0xab04e027...01fee2FC2
0.00276123 ETH
162086012022-12-18 2:29:47630 days ago1671330587
0xab04e027...01fee2FC2
29.58 ETH
161868902022-12-15 1:43:47633 days ago1671068627
0xab04e027...01fee2FC2
27.6828 ETH
161868852022-12-15 1:42:47633 days ago1671068567
0xab04e027...01fee2FC2
0.00176567 ETH
161868852022-12-15 1:42:47633 days ago1671068567
0xab04e027...01fee2FC2
27.6828 ETH
161365922022-12-08 1:04:47640 days ago1670461487
0xab04e027...01fee2FC2
0.00408152 ETH
161365922022-12-08 1:04:47640 days ago1670461487
0xab04e027...01fee2FC2
0.226644 ETH
161365632022-12-08 0:58:59640 days ago1670461139
0xab04e027...01fee2FC2
0.00171355 ETH
View All Internal Transactions
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Contract Source Code Verified (Exact Match)

Contract Name:
Autobidder

Compiler Version
v0.8.15+commit.e14f2714

Optimization Enabled:
Yes with 20000 runs

Other Settings:
default evmVersion
File 1 of 10 : Autobidder.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {INounsToken} from "./interfaces/INounsToken.sol";
import {INounsAuctionHouse} from "./interfaces/INounsAuctionHouse.sol";

// Contact: https://twitter.com/w1nt3r_eth/
contract Autobidder is Ownable {
    struct Config {
        uint96 maxBid;
        uint96 maxGasPrice;
        uint48 maxSecondsBeforeEndTime;
        uint16 feePointsPer10k;
        address receiver;
    }

    error PermissionDenied();
    error NoBiddingAgainstOurselves();
    error BidTooLarge(uint256 bid, uint256 maxBid);
    error GasTooHigh(uint256 gasPrice, uint256 maxGasPrice);
    error TooEarly();
    error WithdrawingNounsRequiresFee();
    error InvalidReceiver();

    event ConfigChanged(Config config);

    INounsToken internal immutable nouns;
    INounsAuctionHouse internal immutable auction;

    address public relay;

    Config public config;
    mapping(uint256 => uint256) public fees;

    constructor(INounsToken _nouns, INounsAuctionHouse _auction, address _owner, address _relay, Config memory _config)
        payable
    {
        nouns = _nouns;
        auction = _auction;
        relay = _relay;
        config = _config;

        if (_config.receiver == address(0)) {
            revert InvalidReceiver();
        }

        if (msg.sender != _owner) {
            _transferOwnership(_owner);
        }
    }

    modifier refundsGas() {
        uint256 refund;
        unchecked {
            refund = gasleft() + 25_562;
        }

        _;

        assembly {
            refund := mul(sub(refund, gas()), gasprice())
        }
        payable(tx.origin).transfer(refund);
    }

    modifier onlyOwnerOrRelay() {
        if (msg.sender != relay && msg.sender != owner()) {
            revert PermissionDenied();
        }

        _;
    }

    function configure(Config calldata _config) external onlyOwner {
        if (_config.receiver == address(0)) {
            revert InvalidReceiver();
        }

        config = _config;
        emit ConfigChanged(_config);
    }

    function createBid(uint256 _nounId) external refundsGas onlyOwnerOrRelay {
        (, uint256 amount,, uint256 endTime, address bidder,) = auction.auction();
        Config memory cfg = config;

        uint256 value;

        if (amount == 0) {
            value = auction.reservePrice();
        } else {
            value = amount + ((amount * auction.minBidIncrementPercentage()) / 100);
        }

        if (bidder == address(this) || bidder == owner() || bidder == cfg.receiver) {
            revert NoBiddingAgainstOurselves();
        }

        if (value > cfg.maxBid) {
            revert BidTooLarge(value, cfg.maxBid);
        }

        if (tx.gasprice > cfg.maxGasPrice) {
            revert GasTooHigh(tx.gasprice, cfg.maxGasPrice);
        }

        if (block.timestamp + cfg.maxSecondsBeforeEndTime < endTime) {
            revert TooEarly();
        }

        auction.createBid{value: value}(_nounId);

        // Reserve service fee
        fees[_nounId] = (value * cfg.feePointsPer10k) / 10_000;
    }

    function withdrawNoun(uint256 _nounId) external payable refundsGas onlyOwnerOrRelay {
        address receiver = config.receiver;
        address to = config.receiver != address(0) ? receiver : owner();

        nouns.safeTransferFrom(address(this), to, _nounId);
        payable(relay).transfer(fees[_nounId]);
        fees[_nounId] = 0;
    }

    function execTransaction(address target, bytes calldata data, uint256 value) external payable onlyOwner {
        if (target == address(nouns)) {
            revert WithdrawingNounsRequiresFee();
        }

        (bool success, bytes memory reason) = target.call{value: value}(data);
        require(success, string(reason));
    }

    receive() external payable {}
}

File 2 of 10 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 3 of 10 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

File 4 of 10 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

File 5 of 10 : INounsToken.sol
// SPDX-License-Identifier: GPL-3.0

/// @title Interface for NounsToken

/**
 *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░██░░░████░░██░░░████░░░ *
 * ░░██████░░░████████░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 *
 */

pragma solidity ^0.8.6;

import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {INounsDescriptor} from "./INounsDescriptor.sol";
import {INounsSeeder} from "./INounsSeeder.sol";

interface INounsToken is IERC721 {
    event NounCreated(uint256 indexed tokenId, INounsSeeder.Seed seed);

    event NounBurned(uint256 indexed tokenId);

    event LilNoundersDAOUpdated(address lilnoundersDAO);

    event NounsDAOUpdated(address nounsDAO);

    event MinterUpdated(address minter);

    event MinterLocked();

    event DescriptorUpdated(INounsDescriptor descriptor);

    event DescriptorLocked();

    event SeederUpdated(INounsSeeder seeder);

    event SeederLocked();

    function mint() external returns (uint256);

    function burn(uint256 tokenId) external;

    function dataURI(uint256 tokenId) external returns (string memory);

    function setLilNoundersDAO(address lilnoundersDAO) external;

    function setNounsDAO(address nounsDAO) external;

    function setMinter(address minter) external;

    function lockMinter() external;

    function setDescriptor(INounsDescriptor descriptor) external;

    function lockDescriptor() external;

    function setSeeder(INounsSeeder seeder) external;

    function lockSeeder() external;
}

File 6 of 10 : INounsAuctionHouse.sol
// SPDX-License-Identifier: GPL-3.0

/// @title Interface for Noun Auction Houses

/**
 *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░██░░░████░░██░░░████░░░ *
 * ░░██████░░░████████░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 *
 */

pragma solidity ^0.8.6;

interface INounsAuctionHouse {
    struct Auction {
        // ID for the Noun (ERC721 token ID)
        uint256 nounId;
        // The current highest bid amount
        uint256 amount;
        // The time that the auction started
        uint256 startTime;
        // The time that the auction is scheduled to end
        uint256 endTime;
        // The address of the current highest bid
        address payable bidder;
        // Whether or not the auction has been settled
        bool settled;
    }

    event AuctionCreated(uint256 indexed nounId, uint256 startTime, uint256 endTime);

    event AuctionBid(uint256 indexed nounId, address sender, uint256 value, bool extended);

    event AuctionExtended(uint256 indexed nounId, uint256 endTime);

    event AuctionSettled(uint256 indexed nounId, address winner, uint256 amount);

    event AuctionTimeBufferUpdated(uint256 timeBuffer);

    event AuctionReservePriceUpdated(uint256 reservePrice);

    event AuctionMinBidIncrementPercentageUpdated(uint256 minBidIncrementPercentage);

    function auction()
        external
        view
        returns (
            uint256 nounId,
            uint256 amount,
            uint256 startTime,
            uint256 endTime,
            address payable bidder,
            bool settled
        );

    function reservePrice() external view returns (uint256);

    function minBidIncrementPercentage() external view returns (uint8);

    function settleAuction() external;

    function settleCurrentAndCreateNewAuction() external;

    function createBid(uint256 nounId) external payable;

    function pause() external;

    function unpause() external;

    function setTimeBuffer(uint256 timeBuffer) external;

    function setReservePrice(uint256 reservePrice) external;

    function setMinBidIncrementPercentage(uint8 minBidIncrementPercentage) external;
}

File 7 of 10 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 8 of 10 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 9 of 10 : INounsDescriptor.sol
// SPDX-License-Identifier: GPL-3.0

/// @title Interface for NounsDescriptor

/**
 *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░██░░░████░░██░░░████░░░ *
 * ░░██████░░░████████░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 *
 */

pragma solidity ^0.8.6;

import {INounsSeeder} from "./INounsSeeder.sol";

interface INounsDescriptor {
    event PartsLocked();

    event DataURIToggled(bool enabled);

    event BaseURIUpdated(string baseURI);

    function arePartsLocked() external returns (bool);

    function isDataURIEnabled() external returns (bool);

    function baseURI() external returns (string memory);

    function palettes(uint8 paletteIndex, uint256 colorIndex) external view returns (string memory);

    function backgrounds(uint256 index) external view returns (string memory);

    function bodies(uint256 index) external view returns (bytes memory);

    function accessories(uint256 index) external view returns (bytes memory);

    function heads(uint256 index) external view returns (bytes memory);

    function glasses(uint256 index) external view returns (bytes memory);

    function backgroundCount() external view returns (uint256);

    function bodyCount() external view returns (uint256);

    function accessoryCount() external view returns (uint256);

    function headCount() external view returns (uint256);

    function glassesCount() external view returns (uint256);

    function addManyColorsToPalette(uint8 paletteIndex, string[] calldata newColors) external;

    function addManyBackgrounds(string[] calldata backgrounds) external;

    function addManyBodies(bytes[] calldata bodies) external;

    function addManyAccessories(bytes[] calldata accessories) external;

    function addManyHeads(bytes[] calldata heads) external;

    function addManyGlasses(bytes[] calldata glasses) external;

    function addColorToPalette(uint8 paletteIndex, string calldata color) external;

    function addBackground(string calldata background) external;

    function addBody(bytes calldata body) external;

    function addAccessory(bytes calldata accessory) external;

    function addHead(bytes calldata head) external;

    function addGlasses(bytes calldata glasses) external;

    function lockParts() external;

    function toggleDataURIEnabled() external;

    function setBaseURI(string calldata baseURI) external;

    function tokenURI(uint256 tokenId, INounsSeeder.Seed memory seed) external view returns (string memory);

    function dataURI(uint256 tokenId, INounsSeeder.Seed memory seed) external view returns (string memory);

    function genericDataURI(string calldata name, string calldata description, INounsSeeder.Seed memory seed)
        external
        view
        returns (string memory);

    function generateSVGImage(INounsSeeder.Seed memory seed) external view returns (string memory);
}

File 10 of 10 : INounsSeeder.sol
// SPDX-License-Identifier: GPL-3.0

/// @title Interface for NounsSeeder

/**
 *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░██░░░████░░██░░░████░░░ *
 * ░░██████░░░████████░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░██░░██░░░████░░██░░░████░░░ *
 * ░░░░░░█████████░░█████████░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
 *
 */

pragma solidity ^0.8.6;

import {INounsDescriptor} from "./INounsDescriptor.sol";

interface INounsSeeder {
    struct Seed {
        uint48 background;
        uint48 body;
        uint48 accessory;
        uint48 head;
        uint48 glasses;
    }

    function generateSeed(uint256 nounId, INounsDescriptor descriptor) external view returns (Seed memory);
}

Settings
{
  "remappings": [
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 20000
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"contract INounsToken","name":"_nouns","type":"address"},{"internalType":"contract INounsAuctionHouse","name":"_auction","type":"address"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_relay","type":"address"},{"components":[{"internalType":"uint96","name":"maxBid","type":"uint96"},{"internalType":"uint96","name":"maxGasPrice","type":"uint96"},{"internalType":"uint48","name":"maxSecondsBeforeEndTime","type":"uint48"},{"internalType":"uint16","name":"feePointsPer10k","type":"uint16"},{"internalType":"address","name":"receiver","type":"address"}],"internalType":"struct Autobidder.Config","name":"_config","type":"tuple"}],"stateMutability":"payable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"bid","type":"uint256"},{"internalType":"uint256","name":"maxBid","type":"uint256"}],"name":"BidTooLarge","type":"error"},{"inputs":[{"internalType":"uint256","name":"gasPrice","type":"uint256"},{"internalType":"uint256","name":"maxGasPrice","type":"uint256"}],"name":"GasTooHigh","type":"error"},{"inputs":[],"name":"InvalidReceiver","type":"error"},{"inputs":[],"name":"NoBiddingAgainstOurselves","type":"error"},{"inputs":[],"name":"PermissionDenied","type":"error"},{"inputs":[],"name":"TooEarly","type":"error"},{"inputs":[],"name":"WithdrawingNounsRequiresFee","type":"error"},{"anonymous":false,"inputs":[{"components":[{"internalType":"uint96","name":"maxBid","type":"uint96"},{"internalType":"uint96","name":"maxGasPrice","type":"uint96"},{"internalType":"uint48","name":"maxSecondsBeforeEndTime","type":"uint48"},{"internalType":"uint16","name":"feePointsPer10k","type":"uint16"},{"internalType":"address","name":"receiver","type":"address"}],"indexed":false,"internalType":"struct Autobidder.Config","name":"config","type":"tuple"}],"name":"ConfigChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"config","outputs":[{"internalType":"uint96","name":"maxBid","type":"uint96"},{"internalType":"uint96","name":"maxGasPrice","type":"uint96"},{"internalType":"uint48","name":"maxSecondsBeforeEndTime","type":"uint48"},{"internalType":"uint16","name":"feePointsPer10k","type":"uint16"},{"internalType":"address","name":"receiver","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint96","name":"maxBid","type":"uint96"},{"internalType":"uint96","name":"maxGasPrice","type":"uint96"},{"internalType":"uint48","name":"maxSecondsBeforeEndTime","type":"uint48"},{"internalType":"uint16","name":"feePointsPer10k","type":"uint16"},{"internalType":"address","name":"receiver","type":"address"}],"internalType":"struct Autobidder.Config","name":"_config","type":"tuple"}],"name":"configure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_nounId","type":"uint256"}],"name":"createBid","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"execTransaction","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"fees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"relay","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_nounId","type":"uint256"}],"name":"withdrawNoun","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _nouns (address): 0x9C8fF314C9Bc7F6e59A9d9225Fb22946427eDC03
Arg [1] : _auction (address): 0x830BD73E4184ceF73443C15111a1DF14e495C706
Arg [2] : _owner (address): 0x1ca3EE0F41B8a2e3704E23E1aED5a12633Ff008e
Arg [3] : _relay (address): 0x76417C5980973864EBea844C18f676e2DBbB0C00
Arg [4] : _config (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 0000000000000000000000009c8ff314c9bc7f6e59a9d9225fb22946427edc03
Arg [1] : 000000000000000000000000830bd73e4184cef73443c15111a1df14e495c706
Arg [2] : 0000000000000000000000001ca3ee0f41b8a2e3704e23e1aed5a12633ff008e
Arg [3] : 00000000000000000000000076417c5980973864ebea844c18f676e2dbbb0c00
Arg [4] : 000000000000000000000000000000000000000000000001e5b8fa8fe2ac0000
Arg [5] : 000000000000000000000000000000000000000000000000000000174876e800
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000078
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000064
Arg [8] : 000000000000000000000000d5f279ff9eb21c6d40c8f345a66f2751c4eea1fb


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.