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ETH Balance

0.394 ETH

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$1,311.32 (@ $3,328.22/ETH)
Transaction Hash
Method
Block
From
To
Settle Auction208623502024-09-30 8:43:59118 days ago1727685839IN
0x2d0ef27f...5bdAb9b85
0.02 ETH0.000462337.70900045
Settle Auction208591892024-09-29 22:09:35118 days ago1727647775IN
0x2d0ef27f...5bdAb9b85
0 ETH0.000198398.34196138
Settle Auction208591882024-09-29 22:09:23118 days ago1727647763IN
0x2d0ef27f...5bdAb9b85
0 ETH0.000987238.60517071
Settle Auction208591882024-09-29 22:09:23118 days ago1727647763IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001209728.60517071
Settle Auction208591812024-09-29 22:07:59118 days ago1727647679IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001213288.63051394
Settle Auction208591792024-09-29 22:07:35118 days ago1727647655IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0023771316.90933623
Settle Auction208591762024-09-29 22:06:59118 days ago1727647619IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0019667817.14333794
Settle Auction208591762024-09-29 22:06:59118 days ago1727647619IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0019668717.14333794
Settle Auction208591752024-09-29 22:06:47118 days ago1727647607IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0024335517.3107034
Settle Auction208591752024-09-29 22:06:47118 days ago1727647607IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0024335517.3107034
Settle Auction208591742024-09-29 22:06:35118 days ago1727647595IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0024045617.10446159
Settle Auction208591742024-09-29 22:06:35118 days ago1727647595IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0024045617.10446159
Settle Auction208591742024-09-29 22:06:35118 days ago1727647595IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0019623217.10446159
Settle Auction208591472024-09-29 22:01:11118 days ago1727647271IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001030827.33262848
Settle Auction208591402024-09-29 21:59:47118 days ago1727647187IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001283589.13056916
Settle Auction208591342024-09-29 21:58:35118 days ago1727647115IN
0x2d0ef27f...5bdAb9b85
0 ETH0.000214018.99872895
Settle Auction208591342024-09-29 21:58:35118 days ago1727647115IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001272299.05025299
Settle Auction208590792024-09-29 21:47:35118 days ago1727646455IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0029042320.65879056
Settle Auction208590792024-09-29 21:47:35118 days ago1727646455IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0029042320.65879056
Settle Auction208590772024-09-29 21:47:11118 days ago1727646431IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0028747920.44940537
Settle Auction208584982024-09-29 19:50:11119 days ago1727639411IN
0x2d0ef27f...5bdAb9b85
0 ETH0.0030472217.43454612
Bid With Mint Pa...208546212024-09-29 6:52:11119 days ago1727592731IN
0x2d0ef27f...5bdAb9b85
0.05 ETH0.000501416.20369746
Bid208519362024-09-28 21:51:59119 days ago1727560319IN
0x2d0ef27f...5bdAb9b85
0.03 ETH0.00029725.59729064
Bid208503792024-09-28 16:38:11120 days ago1727541491IN
0x2d0ef27f...5bdAb9b85
0.02 ETH0.001323517.09553955
Settle Auction208499422024-09-28 15:10:35120 days ago1727536235IN
0x2d0ef27f...5bdAb9b85
0 ETH0.001114858.07392525
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208591882024-09-29 22:09:23118 days ago1727647763
0x2d0ef27f...5bdAb9b85
0.02 ETH
208591882024-09-29 22:09:23118 days ago1727647763
0x2d0ef27f...5bdAb9b85
0.027 ETH
208591882024-09-29 22:09:23118 days ago1727647763
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0.003 ETH
208591812024-09-29 22:07:59118 days ago1727647679
0x2d0ef27f...5bdAb9b85
0.018 ETH
208591812024-09-29 22:07:59118 days ago1727647679
0x2d0ef27f...5bdAb9b85
0.002 ETH
208591792024-09-29 22:07:35118 days ago1727647655
0x2d0ef27f...5bdAb9b85
0.0162 ETH
208591792024-09-29 22:07:35118 days ago1727647655
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0.0018 ETH
208591762024-09-29 22:06:59118 days ago1727647619
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0.03 ETH
208591762024-09-29 22:06:59118 days ago1727647619
0x2d0ef27f...5bdAb9b85
0.137 ETH
208591752024-09-29 22:06:47118 days ago1727647607
0x2d0ef27f...5bdAb9b85
0.0135 ETH
208591752024-09-29 22:06:47118 days ago1727647607
0x2d0ef27f...5bdAb9b85
0.0015 ETH
208591752024-09-29 22:06:47118 days ago1727647607
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0.018 ETH
208591752024-09-29 22:06:47118 days ago1727647607
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208591742024-09-29 22:06:35118 days ago1727647595
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208591742024-09-29 22:06:35118 days ago1727647595
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0.0015 ETH
208591742024-09-29 22:06:35118 days ago1727647595
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208591742024-09-29 22:06:35118 days ago1727647595
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208591742024-09-29 22:06:35118 days ago1727647595
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208591472024-09-29 22:01:11118 days ago1727647271
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208591472024-09-29 22:01:11118 days ago1727647271
0x2d0ef27f...5bdAb9b85
0.003 ETH
208591402024-09-29 21:59:47118 days ago1727647187
0x2d0ef27f...5bdAb9b85
0.018 ETH
208591402024-09-29 21:59:47118 days ago1727647187
0x2d0ef27f...5bdAb9b85
0.002 ETH
208591342024-09-29 21:58:35118 days ago1727647115
0x2d0ef27f...5bdAb9b85
0.018 ETH
208591342024-09-29 21:58:35118 days ago1727647115
0x2d0ef27f...5bdAb9b85
0.002 ETH
208590792024-09-29 21:47:35118 days ago1727646455
0x2d0ef27f...5bdAb9b85
0.0225 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
SequelsAuction

Compiler Version
v0.8.18+commit.87f61d96

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Multiple files format)

File 1 of 5: SequelsAuction.sol
// SPDX-License-Identifier: MIT
// Copyright (c) 2022 Fellowship
// contract by steviep.eth

/*

███████ ███████  ██████  ██    ██ ███████ ██      ███████
██      ██      ██    ██ ██    ██ ██      ██      ██
███████ █████   ██    ██ ██    ██ █████   ██      ███████
     ██ ██      ██ ▄▄ ██ ██    ██ ██      ██           ██
███████ ███████  ██████   ██████  ███████ ███████ ███████
                    ▀▀

 █████  ██    ██  ██████ ████████ ██  ██████  ███    ██
██   ██ ██    ██ ██         ██    ██ ██    ██ ████   ██
███████ ██    ██ ██         ██    ██ ██    ██ ██ ██  ██
██   ██ ██    ██ ██         ██    ██ ██    ██ ██  ██ ██
██   ██  ██████   ██████    ██    ██  ██████  ██   ████

*/

import "./SequelsBase.sol";

pragma solidity ^0.8.17;

interface FPP {
  function logPassUse(uint256 tokenId, uint256 projectId) external;
  function ownerOf(uint256 tokenId) external returns (address);
}

interface IWETH {
  function deposit() external payable;
  function withdraw(uint256 wad) external;
  function transfer(address to, uint256 value) external returns (bool);
}

contract SequelsAuction {
  uint256 public immutable PROJECT_START_TIME;
  uint256 public immutable PROJECT_END_TIME;
  address public immutable weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
  address public fpp = 0xA8A425864dB32fCBB459Bf527BdBb8128e6abF21;
  uint256 public fppProjectId = 2;
  address public beneficiary1;
  address public beneficiary2;

  uint256 public bidIncreaseBps = 1000;
  uint256 public mintPassRebateBps = 1000;
  uint256 public minBid = 0.01 ether;
  bool public paused;

  event BidMade(uint256 indexed day, address bidder, uint256 amount, uint256 timestamp);
  event Settled(uint256 indexed day, uint256 timestamp);

  struct Bid {
    uint128 amount;
    uint128 timestamp;
    address bidder;
    bool usesMintPass;
    uint256 mintPassId;
  }

  mapping(uint256 => Bid) public auctions;
  mapping(uint256 => bool) public auctionSettlements;

  SequelsBase public sequelsBase;

  constructor(SequelsBase _sequelsBase, uint256 startTime, uint256 endTime) {
    sequelsBase = _sequelsBase;
    beneficiary1 = msg.sender;
    beneficiary2 = msg.sender;
    PROJECT_START_TIME = startTime;
    PROJECT_END_TIME = endTime;
  }

  function bid(uint256 day) external payable {
    bid(day, false, 0);
  }

  function bidWithMintPass(uint256 day, uint256 mintPassId) external payable {
    require(FPP(fpp).ownerOf(mintPassId) == msg.sender, 'Caller is not the owner of FPP');
    bid(day, true, mintPassId);
  }

  function bid(uint256 day, bool usesMintPass, uint256 mintPassId) private {
    require(isAuctionActive(day), 'Auction for this day is not active');
    require(!paused, 'Bidding is paused');

    Bid storage highestBid = auctions[day];

    require(
      msg.value >= (highestBid.amount * (10000 + bidIncreaseBps) / 10000)
      && msg.value >= minBid,
      'Bid not high enough'
    );

    uint256 refundAmount;
    address refundBidder;

    if (highestBid.timestamp > 0) {
      refundAmount = highestBid.amount;
      refundBidder = highestBid.bidder;
    }

    highestBid.timestamp = uint128(block.timestamp);
    highestBid.amount = uint128(msg.value);
    highestBid.bidder = msg.sender;
    highestBid.usesMintPass = usesMintPass;
    highestBid.mintPassId = mintPassId;

    emit BidMade(day, msg.sender, msg.value, block.timestamp);

    if (refundAmount > 0) _safeTransferETH(refundBidder, refundAmount);
  }

  function settleAuction(uint256 day) external payable {
    require(!auctionSettlements[day], 'Auction has already been settled');
    require(currentDay() >= day, 'Auction for this day has not started');
    require(!isAuctionActive(day), 'Auction for this day is still active');

    Bid storage highestBid = auctions[day];

    auctionSettlements[day] = true;

    uint256 amountToPay = highestBid.amount;

    if (highestBid.timestamp > 0) {
      sequelsBase.mint(highestBid.bidder, day);

    } else {
      require(msg.sender == owner(), 'Ownable: caller is not the owner');
      require(msg.value >= minBid, 'Bid not high enough');
      amountToPay = msg.value;

      sequelsBase.mint(msg.sender, day);
    }

    emit Settled(day, block.timestamp);

    bool mintPassStillOwned = FPP(fpp).ownerOf(highestBid.mintPassId) == highestBid.bidder;

    uint256 totalRebate = 0;
    if (highestBid.usesMintPass && mintPassStillOwned) {
      FPP(fpp).logPassUse(highestBid.mintPassId, fppProjectId);
      totalRebate = amountToPay * (mintPassRebateBps) / 10000;
    }

    if (totalRebate > 0) {
      _safeTransferETH(highestBid.bidder, totalRebate);
      payable(beneficiary2).transfer(amountToPay - totalRebate);
    } else {
      payable(beneficiary1).transfer(amountToPay);
    }
  }

  function owner() public view returns (address) {
    return sequelsBase.owner();
  }

  modifier onlyOwner {
    require(msg.sender == owner(), 'Ownable: caller is not the owner');
    _;
  }

  function setBidIncreaseBps(uint256 _bidIncreaseBps) external onlyOwner {
    bidIncreaseBps = _bidIncreaseBps;
  }

  function setMintPassRebateBps(uint256 _mintPassRebateBps) external onlyOwner {
    mintPassRebateBps = _mintPassRebateBps;
  }

  function setMinBid(uint256 _minBid) external onlyOwner {
    minBid = _minBid;
  }

  function setBeneficiary(address _beneficiary1, address _beneficiary2) external onlyOwner {
    beneficiary1 = _beneficiary1;
    beneficiary2 = _beneficiary2;
  }

  function setFpp(address _fpp, uint256 _fppProjectId) external onlyOwner {
    fpp = _fpp;
    fppProjectId = _fppProjectId;
  }

  function setPaused(bool _paused) external onlyOwner {
    paused = _paused;
  }

  function isAuctionActive(uint256 day) public view returns (bool) {
    uint256 startTime = (day * 1 days) + PROJECT_START_TIME;
    uint256 endTime = startTime + 1 days;

    return (
      block.timestamp >= startTime
      && (
        block.timestamp < endTime
        || block.timestamp < auctions[day].timestamp + 10 minutes
      )
    );
  }

  function currentDay() public view returns (uint256) {
    if (block.timestamp < PROJECT_START_TIME) {
      return 0;

    } else if (block.timestamp > PROJECT_END_TIME) {
      return (PROJECT_END_TIME - PROJECT_START_TIME) / 1 days;

    } else {
      return (block.timestamp - PROJECT_START_TIME) / 1 days;
    }
  }

  /**
   * @notice Transfer ETH. If the ETH transfer fails, wrap the ETH and try send it as WETH.
   */
  function _safeTransferETHWithFallback(address to, uint256 amount) internal {
    if (!_safeTransferETH(to, amount)) {
      IWETH(weth).deposit{ value: amount }();
      IWETH(weth).transfer(to, amount);
    }
  }

  /**
   * @notice Transfer ETH and return the success status.
   * @dev This function only forwards 30,000 gas to the callee.
   */
  function _safeTransferETH(address to, uint256 value) internal returns (bool) {
    (bool success, ) = to.call{ value: value, gas: 30_000 }(new bytes(0));
    return success;
  }
}

File 2 of 5: Dependencies.sol
// SPDX-License-Identifier: MIT

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);
}



/**
 * @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`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
     * @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;
}



/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}


/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}



/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    // /**
    //  * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
    //  * `recipient`, forwarding all available gas and reverting on errors.
    //  *
    //  * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
    //  * of certain opcodes, possibly making contracts go over the 2300 gas limit
    //  * imposed by `transfer`, making them unable to receive funds via
    //  * `transfer`. {sendValue} removes this limitation.
    //  *
    //  * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
    //  *
    //  * IMPORTANT: because control is transferred to `recipient`, care must be
    //  * taken to not create reentrancy vulnerabilities. Consider using
    //  * {ReentrancyGuard} or the
    //  * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
    //  */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    // /**
    //  * @dev Performs a Solidity function call using a low level `call`. A
    //  * plain `call` is an unsafe replacement for a function call: use this
    //  * function instead.
    //  *
    //  * If `target` reverts with a revert reason, it is bubbled up by this
    //  * function (like regular Solidity function calls).
    //  *
    //  * Returns the raw returned data. To convert to the expected return value,
    //  * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
    //  *
    //  * Requirements:
    //  *
    //  * - `target` must be a contract.
    //  * - calling `target` with `data` must not revert.
    //  *
    //  * _Available since v3.1._
    //  */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
    //  * `errorMessage` as a fallback revert reason when `target` reverts.
    //  *
    //  * _Available since v3.1._
    //  */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
    //  * but also transferring `value` wei to `target`.
    //  *
    //  * Requirements:
    //  *
    //  * - the calling contract must have an ETH balance of at least `value`.
    //  * - the called Solidity function must be `payable`.
    //  *
    //  * _Available since v3.1._
    //  */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    // *
    //  * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
    //  * with `errorMessage` as a fallback revert reason when `target` reverts.
    //  *
    //  * _Available since v3.1._

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
    //  * but performing a static call.
    //  *
    //  * _Available since v3.3._
    //  */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
    //  * but performing a static call.
    //  *
    //  * _Available since v3.3._
    //  */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
    //  * but performing a delegate call.
    //  *
    //  * _Available since v3.4._
    //  */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    // /**
    //  * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
    //  * but performing a delegate call.
    //  *
    //  * _Available since v3.4._
    //  */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    // /**
    //  * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
    //  * revert reason using the provided one.
    //  *
    //  * _Available since v4.3._
    //  */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

/**
 * @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;
    }
}


/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    // Don't need these

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}



/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}



/**
 * @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() {
        _setOwner(_msgSender());
    }

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

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}




/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @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.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver(to).onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}


File 3 of 5: OperatorFiltererDependencies.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.13;


interface IOperatorFilterRegistry {
    /**
     * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns
     *         true if supplied registrant address is not registered.
     */
    function isOperatorAllowed(address registrant, address operator) external view returns (bool);

    /**
     * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.
     */
    function register(address registrant) external;

    /**
     * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes.
     */
    function registerAndSubscribe(address registrant, address subscription) external;

    /**
     * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another
     *         address without subscribing.
     */
    function registerAndCopyEntries(address registrant, address registrantToCopy) external;

    /**
     * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.
     *         Note that this does not remove any filtered addresses or codeHashes.
     *         Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.
     */
    function unregister(address addr) external;

    /**
     * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.
     */
    function updateOperator(address registrant, address operator, bool filtered) external;

    /**
     * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.
     */
    function updateOperators(address registrant, address[] calldata operators, bool filtered) external;

    /**
     * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.
     */
    function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;

    /**
     * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.
     */
    function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;

    /**
     * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous
     *         subscription if present.
     *         Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,
     *         subscriptions will not be forwarded. Instead the former subscription's existing entries will still be
     *         used.
     */
    function subscribe(address registrant, address registrantToSubscribe) external;

    /**
     * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.
     */
    function unsubscribe(address registrant, bool copyExistingEntries) external;

    /**
     * @notice Get the subscription address of a given registrant, if any.
     */
    function subscriptionOf(address addr) external returns (address registrant);

    /**
     * @notice Get the set of addresses subscribed to a given registrant.
     *         Note that order is not guaranteed as updates are made.
     */
    function subscribers(address registrant) external returns (address[] memory);

    /**
     * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.
     *         Note that order is not guaranteed as updates are made.
     */
    function subscriberAt(address registrant, uint256 index) external returns (address);

    /**
     * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.
     */
    function copyEntriesOf(address registrant, address registrantToCopy) external;

    /**
     * @notice Returns true if operator is filtered by a given address or its subscription.
     */
    function isOperatorFiltered(address registrant, address operator) external returns (bool);

    /**
     * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.
     */
    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);

    /**
     * @notice Returns true if a codeHash is filtered by a given address or its subscription.
     */
    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);

    /**
     * @notice Returns a list of filtered operators for a given address or its subscription.
     */
    function filteredOperators(address addr) external returns (address[] memory);

    /**
     * @notice Returns the set of filtered codeHashes for a given address or its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredCodeHashes(address addr) external returns (bytes32[] memory);

    /**
     * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or
     *         its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredOperatorAt(address registrant, uint256 index) external returns (address);

    /**
     * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or
     *         its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);

    /**
     * @notice Returns true if an address has registered
     */
    function isRegistered(address addr) external returns (bool);

    /**
     * @dev Convenience method to compute the code hash of an arbitrary contract
     */
    function codeHashOf(address addr) external returns (bytes32);
}


/**
 * @title  UpdatableOperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry. This contract allows the Owner to update the
 *         OperatorFilterRegistry address via updateOperatorFilterRegistryAddress, including to the zero address,
 *         which will bypass registry checks.
 *         Note that OpenSea will still disable creator earnings enforcement if filtered operators begin fulfilling orders
 *         on-chain, eg, if the registry is revoked or bypassed.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 */
abstract contract UpdatableOperatorFilterer {
    /// @dev Emitted when an operator is not allowed.
    error OperatorNotAllowed(address operator);
    /// @dev Emitted when someone other than the owner is trying to call an only owner function.
    error OnlyOwner();

    event OperatorFilterRegistryAddressUpdated(address newRegistry);

    IOperatorFilterRegistry public operatorFilterRegistry;

    /// @dev The constructor that is called when the contract is being deployed.
    constructor(address _registry, address subscriptionOrRegistrantToCopy, bool subscribe) {
        IOperatorFilterRegistry registry = IOperatorFilterRegistry(_registry);
        operatorFilterRegistry = registry;
        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
        // will not revert, but the contract will need to be registered with the registry once it is deployed in
        // order for the modifier to filter addresses.
        if (address(registry).code.length > 0) {
            if (subscribe) {
                registry.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
            } else {
                if (subscriptionOrRegistrantToCopy != address(0)) {
                    registry.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
                } else {
                    registry.register(address(this));
                }
            }
        }
    }

    /**
     * @dev A helper function to check if the operator is allowed.
     */
    modifier onlyAllowedOperator(address from) virtual {
        // Allow spending tokens from addresses with balance
        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
        // from an EOA.
        if (from != msg.sender) {
            _checkFilterOperator(msg.sender);
        }
        _;
    }

    /**
     * @dev A helper function to check if the operator approval is allowed.
     */
    modifier onlyAllowedOperatorApproval(address operator) virtual {
        _checkFilterOperator(operator);
        _;
    }

    /**
     * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero
     *         address, checks will be bypassed. OnlyOwner.
     */
    function updateOperatorFilterRegistryAddress(address newRegistry) public virtual {
        if (msg.sender != owner()) {
            revert OnlyOwner();
        }
        operatorFilterRegistry = IOperatorFilterRegistry(newRegistry);
        emit OperatorFilterRegistryAddressUpdated(newRegistry);
    }

    /**
     * @dev Assume the contract has an owner, but leave specific Ownable implementation up to inheriting contract.
     */
    function owner() public view virtual returns (address);

    /**
     * @dev A helper function to check if the operator is allowed.
     */
    function _checkFilterOperator(address operator) internal view virtual {
        IOperatorFilterRegistry registry = operatorFilterRegistry;
        // Check registry code length to facilitate testing in environments without a deployed registry.
        if (address(registry) != address(0) && address(registry).code.length > 0) {
            // under normal circumstances, this function will revert rather than return false, but inheriting contracts
            // may specify their own OperatorFilterRegistry implementations, which may behave differently
            if (!registry.isOperatorAllowed(address(this), operator)) {
                revert OperatorNotAllowed(operator);
            }
        }
    }
}


File 4 of 5: SequelsBase.sol
// SPDX-License-Identifier: MIT
// Copyright (c) 2022 Fellowship
// contract by steviep.eth

/*

███████ ███████  ██████  ██    ██ ███████ ██      ███████
██      ██      ██    ██ ██    ██ ██      ██      ██
███████ █████   ██    ██ ██    ██ █████   ██      ███████
     ██ ██      ██ ▄▄ ██ ██    ██ ██      ██           ██
███████ ███████  ██████   ██████  ███████ ███████ ███████
                    ▀▀

*/

import "./Dependencies.sol";
import "./SequelsMetadata.sol";
import "./OperatorFiltererDependencies.sol";

pragma solidity ^0.8.17;

address constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;
address constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;

abstract contract OperatorFilterer is UpdatableOperatorFilterer {
  constructor() UpdatableOperatorFilterer(
    CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS,
    CANONICAL_CORI_SUBSCRIPTION,
    true
  ) {}
}


contract SequelsBase is ERC721, Ownable, OperatorFilterer {
  uint256 public constant maxSupply = 3652;
  uint256 private _totalSupply = 0;
  SequelsMetadata private _metadataContract;
  address public minter;

  address private royaltyBenificiary;
  uint16 private royaltyBasisPoints = 500;

  constructor() ERC721('Sequels', 'JMS') {
    royaltyBenificiary = msg.sender;
    _metadataContract = new SequelsMetadata(this);
  }

  function mint(address to, uint256 tokenId) external {
    require(minter == msg.sender, 'Caller is not the minting address');
    require(_totalSupply <= maxSupply, 'Cannot exceed max supply');
    _mint(to, tokenId);
    _totalSupply++;
  }

  function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
    return _metadataContract.tokenURI(tokenId);
  }

  function totalSupply() external view returns (uint256) {
    return _totalSupply;
  }

  function exists(uint256 tokenId) external view returns (bool) {
    return _exists(tokenId);
  }

  function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721) returns (bool) {
    // ERC2981
    return interfaceId == bytes4(0x2a55205a) || super.supportsInterface(interfaceId);
  }

  function metadataContract() external view returns (address) {
    return address(_metadataContract);
  }

  function setMetadataContract(address _addr) external onlyOwner {
    _metadataContract = SequelsMetadata(_addr);
  }

  function setMinter(address _addr) external onlyOwner {
    minter = _addr;
  }

  function setRoyaltyInfo(
    address _royaltyBenificiary,
    uint16 _royaltyBasisPoints
  ) external onlyOwner {
    royaltyBenificiary = _royaltyBenificiary;
    royaltyBasisPoints = _royaltyBasisPoints;
  }

  function royaltyInfo(uint256, uint256 _salePrice) external view returns (address, uint256) {
    return (royaltyBenificiary, _salePrice * royaltyBasisPoints / 10000);
  }


  event ProjectEvent(
    address indexed poster,
    string indexed eventType,
    string content
  );
  event TokenEvent(
    address indexed poster,
    uint256 indexed tokenId,
    string indexed eventType,
    string content
  );

  function emitProjectEvent(string calldata eventType, string calldata content) external onlyOwner {
    emit ProjectEvent(_msgSender(), eventType, content);
  }

  function emitTokenEvent(uint256 tokenId, string calldata eventType, string calldata content) external {
    require(
      owner() == _msgSender() || ERC721.ownerOf(tokenId) == _msgSender(),
      'Only project or token owner can emit token event'
    );
    emit TokenEvent(_msgSender(), tokenId, eventType, content);
  }


  /// Operator Filterer

  function owner() public view virtual override(UpdatableOperatorFilterer, Ownable) returns (address) {
    return super.owner();
  }

  /**
   * @dev See {IERC721-setApprovalForAll}.
   *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
   */
  function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {
    super.setApprovalForAll(operator, approved);
  }

  /**
   * @dev See {IERC721-approve}.
   *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
   */
  function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {
    super.approve(operator, tokenId);
  }

  /**
   * @dev See {IERC721-transferFrom}.
   *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
   */
  function transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {
    super.transferFrom(from, to, tokenId);
  }

  /**
   * @dev See {IERC721-safeTransferFrom}.
   *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
   */
  function safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {
    super.safeTransferFrom(from, to, tokenId);
  }

  /**
   * @dev See {IERC721-safeTransferFrom}.
   *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
   */
  function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)
    public
    override
    onlyAllowedOperator(from)
  {
    super.safeTransferFrom(from, to, tokenId, data);
  }
}

File 5 of 5: SequelsMetadata.sol
// SPDX-License-Identifier: MIT
// Copyright (c) 2022 Fellowship
// contract by steviep.eth

/*

███████ ███████  ██████  ██    ██ ███████ ██      ███████
██      ██      ██    ██ ██    ██ ██      ██      ██
███████ █████   ██    ██ ██    ██ █████   ██      ███████
     ██ ██      ██ ▄▄ ██ ██    ██ ██      ██           ██
███████ ███████  ██████   ██████  ███████ ███████ ███████
                    ▀▀

███    ███ ███████ ████████  █████  ██████   █████  ████████  █████
████  ████ ██         ██    ██   ██ ██   ██ ██   ██    ██    ██   ██
██ ████ ██ █████      ██    ███████ ██   ██ ███████    ██    ███████
██  ██  ██ ██         ██    ██   ██ ██   ██ ██   ██    ██    ██   ██
██      ██ ███████    ██    ██   ██ ██████  ██   ██    ██    ██   ██

*/

import "./SequelsBase.sol";
import "./Dependencies.sol";

pragma solidity ^0.8.17;

contract SequelsMetadata {
  using Strings for uint256;

  SequelsBase public sequelsBase;
  string public ipfsCid;

  constructor(SequelsBase _sequelsBase) {
    sequelsBase = _sequelsBase;
  }

  function owner() public view returns (address) {
    return sequelsBase.owner();
  }

  function setIpfsCid(string calldata cid) external {
    require(msg.sender == owner(), "Ownable: caller is not the owner");
    ipfsCid = cid;
  }

  function tokenURI(uint256 tokenId) external view returns (string memory) {
    return string(abi.encodePacked('ipfs://', ipfsCid, '/', tokenId.toString()));
  }
}

Contract Security Audit

Contract ABI

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SequelsBase","name":"_sequelsBase","type":"address"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"day","type":"uint256"},{"indexed":false,"internalType":"address","name":"bidder","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"BidMade","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"day","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"Settled","type":"event"},{"inputs":[],"name":"PROJECT_END_TIME","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PROJECT_START_TIME","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"auctionSettlements","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"auctions","outputs":[{"internalType":"uint128","name":"amount","type":"uint128"},{"internalType":"uint128","name":"timestamp","type":"uint128"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"bool","name":"usesMintPass","type":"bool"},{"internalType":"uint256","name":"mintPassId","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"beneficiary1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"beneficiary2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"day","type":"uint256"}],"name":"bid","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"bidIncreaseBps","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"day","type":"uint256"},{"internalType":"uint256","name":"mintPassId","type":"uint256"}],"name":"bidWithMintPass","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"currentDay","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fpp","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fppProjectId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"day","type":"uint256"}],"name":"isAuctionActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minBid","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mintPassRebateBps","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":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sequelsBase","outputs":[{"internalType":"contract SequelsBase","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_beneficiary1","type":"address"},{"internalType":"address","name":"_beneficiary2","type":"address"}],"name":"setBeneficiary","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_bidIncreaseBps","type":"uint256"}],"name":"setBidIncreaseBps","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_fpp","type":"address"},{"internalType":"uint256","name":"_fppProjectId","type":"uint256"}],"name":"setFpp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_minBid","type":"uint256"}],"name":"setMinBid","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintPassRebateBps","type":"uint256"}],"name":"setMintPassRebateBps","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_paused","type":"bool"}],"name":"setPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"day","type":"uint256"}],"name":"settleAuction","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"weth","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000766edd602ce72fa5737a92e50d4a5e192b57aef40000000000000000000000000000000000000000000000000000000064663d700000000000000000000000000000000000000000000000000000000077365f20

-----Decoded View---------------
Arg [0] : _sequelsBase (address): 0x766eDD602ce72FA5737A92e50d4A5e192B57aeF4
Arg [1] : startTime (uint256): 1684422000
Arg [2] : endTime (uint256): 2000052000

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000766edd602ce72fa5737a92e50d4a5e192b57aef4
Arg [1] : 0000000000000000000000000000000000000000000000000000000064663d70
Arg [2] : 0000000000000000000000000000000000000000000000000000000077365f20


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Swarm Source

ipfs://d41c6f8399ab2527890b990aa3b67dd748897cfc580b8a9b23943900a0392241

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.