Contract 0x80336Ad7A747236ef41F47ed2C7641828a480BAA 2

 
Txn Hash
Method
Block
From
To
Value
0x23f4b2538f7e07ed35876934812eff3cb755cd2dd8f2754a46a23a59811c0d7aSet Approval For...152962422022-08-07 16:19:412 mins ago0x321e64d977a8653a6a406fbcfd70a7e2d6db6925 IN  Chimpers: CHIMP Token0 Ether0.00159239 34.39661195
0xe24e97e968fd0b6acd2738d61ec1db6a8c5040973cf93e758fca92defc4cffcfSet Approval For...152961292022-08-07 15:56:3125 mins agoENS Name nhasuutam.eth IN  Chimpers: CHIMP Token0 Ether0.00051779 11.20509784
0x112301b45cd707a0fe00fc89256aaa1520d2e1aa329501c82277356fb6c17564Set Approval For...152958952022-08-07 15:10:561 hr 11 mins agoENS Name superpotsecret.eth IN  Chimpers: CHIMP Token0 Ether0.00095142 20.58881846
0x1d857caf631d2e04f310338a5a37d8f7387d6565f1d1d2b0a3473ae8627b5711Set Approval For...152957742022-08-07 14:45:571 hr 36 mins ago0x69ca97184304a7d67d8e2fcbcf89fd6d41dc676a IN  Chimpers: CHIMP Token0 Ether0.00029495 6.37124252
0xe03e02d47f68238e4ef69b232fb1cd7f8e35bdfff8a0821561d268d06f299d07Set Approval For...152952002022-08-07 12:33:283 hrs 48 mins ago0xfb795eb3ab0efc510044172fda85ec82b05b890f IN  Chimpers: CHIMP Token0 Ether0.00023756 5.14086688
0x81d62e4655770326f3b017f8adc53376bc80cd81a9e26f3d0b069edea6a72a62Safe Transfer Fr...152951862022-08-07 12:31:123 hrs 51 mins ago0x0e00591aa9a24ca057e99d9f8e63d159adf21738 IN  Chimpers: CHIMP Token0 Ether0.00021448 4.4692704
0xa3db203bb1b59bd7c24521f789d974b90a263e68c0a09e84e378e8ae81879dc2Safe Transfer Fr...152951822022-08-07 12:30:233 hrs 51 mins ago0x0e00591aa9a24ca057e99d9f8e63d159adf21738 IN  Chimpers: CHIMP Token0 Ether0.00034701 4.96515947
0xd5a9625dd8c57367350df1832b05341664318eb1d32dd3c95e10e586855df646Set Approval For...152951732022-08-07 12:28:083 hrs 54 mins agoENS Name 0x7gd.eth IN  Chimpers: CHIMP Token0 Ether0.00022454 4.85155187
0xcb37f20ca42224aab6bd149794c191127a766b422c4ffc9a4052217003f331a0Set Approval For...152949212022-08-07 11:33:124 hrs 49 mins ago0xc53e7040ce1d891d59f67cd2dff36b32d4db1f80 IN  Chimpers: CHIMP Token0 Ether0.00019056 4.11639598
0x2c44f3f15d25e58ef95baba3bfcb993de49c2ca5f77df71a719644cf269a743aSet Approval For...152946062022-08-07 10:27:215 hrs 54 mins agoENS Name backuardo.eth IN  Chimpers: CHIMP Token0 Ether0.00018436 3.98231451
0x113c2406bd074a08a3091d1efc6fe7bdc647908cc0c73af4dd6e5d21725e8605Set Approval For...152945912022-08-07 10:23:355 hrs 58 mins agoENS Name yigitt.eth IN  Chimpers: CHIMP Token0 Ether0.00020087 4.33899062
0x0a4d5bb907eba87009136f5034647aada5418261211f0b63747385bd6df9a28cSet Approval For...152944562022-08-07 9:52:086 hrs 30 mins ago0x019461603bd8e14c15aa62c491a4976718629e5e IN  Chimpers: CHIMP Token0 Ether0.00016155 6.62558081
0x5125246ad602f69211dfa1f36d62eb1d5e14d89bee37f3fbeaa44e41c76c400aSet Approval For...152944562022-08-07 9:52:086 hrs 30 mins ago0x019461603bd8e14c15aa62c491a4976718629e5e IN  Chimpers: CHIMP Token0 Ether0.00016155 6.62558081
0xac0c97bd8c9da76adf14c37d9c347fb0550ed6ea474e4cdce2a9de508fcfc4d4Set Approval For...152944562022-08-07 9:52:086 hrs 30 mins ago0x019461603bd8e14c15aa62c491a4976718629e5e IN  Chimpers: CHIMP Token0 Ether0.00016155 6.62558081
0x34360c1f706881eba3106fe7c6bac0bf60005694f04c8f753e35fcc1cf177b04Set Approval For...152942552022-08-07 9:08:167 hrs 14 mins ago0xed02dac9726f15498559c05ce56470ab4d18eaef IN  Chimpers: CHIMP Token0 Ether0.0004205 9.08316517
0x2affce84c8c5a095f5c23fa3e905783f8479cfb86eb9bdcdd32fbfec72fdd92dSet Approval For...152942412022-08-07 9:03:317 hrs 18 mins ago0xb98c9ced420a137d3def9c62d99dde55d4d8879f IN  Chimpers: CHIMP Token0 Ether0.00028188 6.08878888
0x1576fcbca4a2c235d858154aa9d2c64650eb06c7704e6cef4145aa90478177e2Set Approval For...152936942022-08-07 6:59:279 hrs 22 mins agoENS Name beanstamatic.eth IN  Chimpers: CHIMP Token0 Ether0.0001706 3.69195372
0xe53fca7e36bc030df23f9bffd1aa5cdf48e751fe3763a58002db5a67bc66d72eSet Approval For...152932572022-08-07 5:28:0010 hrs 54 mins agoENS Name bit888.eth IN  Chimpers: CHIMP Token0 Ether0.00025716 5.55491051
0x57a873c1376a555e1c8df4e5e5f636f09e0faaadad6f4f0ed505bf0fb1e904dcSet Approval For...152932532022-08-07 5:27:3010 hrs 54 mins agoENS Name bit888.eth IN  Chimpers: CHIMP Token0 Ether0.00028529 6.1737603
0x5da92238fbf213021fb2c06f55d9d6bbd97b9909f55b0439d96a92f660d70f7bSet Approval For...152932482022-08-07 5:26:0510 hrs 56 mins agoENS Name bit888.eth IN  Chimpers: CHIMP Token0 Ether0.00027069 5.84873474
0xa4f8de300746d2b7784a77a25d406b92a047041ad0cb4f9a45ce15eb7af47a68Safe Transfer Fr...152925922022-08-07 2:52:2313 hrs 29 mins agoENS Name tanq.eth IN  Chimpers: CHIMP Token0 Ether0.00037374 8.18048168
0x9615ca19f98645241a7e58a601e97e1670111114eeedd3e179e6b8335d31386cSafe Transfer Fr...152925792022-08-07 2:47:0513 hrs 35 mins agoENS Name tanq.eth IN  Chimpers: CHIMP Token0 Ether0.00043584 6.44850494
0xcdb0fc00a08dafe664a2212a5d54a2a88f574d35561b39dc6ad16e4327bd5d0cSet Approval For...152924392022-08-07 2:13:1714 hrs 9 mins ago0x4aeb942a20643adc3e836c7761caac4a0fbd4ecb IN  Chimpers: CHIMP Token0 Ether0.0002199 4.75005472
0x06b93062cb76ea7e6346f5995035bd85fd7220aebf5653c57bd14566bb2b1eabSet Approval For...152916942022-08-06 23:30:3916 hrs 51 mins ago0x35b9df6c4014168d27098c03d945fbf0fbce33f0 IN  Chimpers: CHIMP Token0 Ether0.00052381 11.31478321
0xf7e13abd4b6a72ef95b756864e3345f52e084f86c6c499d381c64ecec8c7b59dSet Approval For...152913962022-08-06 22:17:2218 hrs 4 mins ago0xdb836aac4078b567bc0bbba6484be7368095b344 IN  Chimpers: CHIMP Token0 Ether0.00044242 9.55661017
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OVERVIEW

Chimpers are a collection of 5,555 generative NFT pixel characters created by @TimpersHD. Chimpers are your digital identity for the Chimpverse and your passport to adventure. !CHIMP

Latest 2 internal transactions
Parent Txn Hash Block From To Value
0x3e528677167683f65c00290abd0627bdae09ac40fa1178d6be98325bdf38fef1149321762022-06-09 10:48:1159 days 5 hrs ago Chimpers: CHIMP Token 0x9f97bd11613e40e6958052834208ce70c357ea9e379.65 Ether
0x1370ca1810e4077dc87d0954d87a8f828b0c15b1ba0e8eee0c6f6f5ed37ee195149283092022-06-08 18:56:2059 days 21 hrs ago Chimpers: CHIMP Token 0x9f97bd11613e40e6958052834208ce70c357ea9e0.1 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
Chimpers

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 19 : Chimpers.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @artist: Timpers
/// @title: Chimpers Generative
/// @author: manifold.xyz

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol";

import "./ERC721CollectionBase.sol";

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                  //
//                                                                                                                  //
//                                                                                                                  //
//                                                                                                                  //
//                                                                 ...                                              //
//                                                                'ON0,                                             //
//                                                      .::c'  .;cd0X0dc:.                                          //
//                                                     .oXNWd. :XWXOkOXMN:                                          //
//                                                   :OOO000OOOO00OkkOXMN:                                          //
//                                             ';;;;:xXX0Okk0XXKkkkkkkKXKd;;;;;.                                    //
//                                            .kWWWWWKkkkkkkkkkkkkkkkkkkOXWWWWNo                                    //
//                      .oxxxxxxxxxxxxxx;  .oxkO00000OkkkkkkkkkkkkkkkkkkkO00000Oxx:                                 //
//                   ..'lKNNNNNNNNNNNNNNx;'lKNXOkkkkkkkkxdoooooooodxkkkkkkkkxddOXNk;'''''''.                        //
//                   ;KNXOkkkkkkkkkkkkkk0NNKOkkkkkkkkkkxl,,'',,''':dkkkkkkkxc,,lkk0NNNNNNNNK;                       //
//                'lok0K0kkxlccccccccokkOKK0kkkkkkkkxoc:;''''''''',:ccdkxocc;'';:ckNMWKKKKK0kdl'                    //
//              ..lXWKkkxxxd;''''''''cdxxkkkkkkkkkxxd:''...........'',lxd:'''.....l0XKOOOkkOXWXl..                  //
//            .l000OOOkkd:;,''''''''',;;lxkkkkkkkxc;;,''.         ..'',;,,''.     ...cKNX0kkOOO00O:                 //
//            .xMMXkkdol:,'''''''''''''';lloxkkkkx:''...    .;::::,....''...   .;::::codoolodkk0XKxc:,              //
//            .xMMXkkl,'''''''''''''''''''':dkkkkx:'..      cNMWWNx.  .'..     cNMWWNx.  .',lxxkkkKWMk.             //
//            .xMMXkkl,'''''''''''''''''''':dkkkkx:'..      cNMO:'.   .'..     cNMO;'.   .'';;:okkKWMk.             //
//            .xMMXkkl,'''''''''''''''''''':xkkkkx:'..      cNM0:,.   .'..     cNMO:,.   .'''''lkkKWMk.             //
//            .xMMXkkl,'''''''''''''''''''':xkkkkx:'..      :XWWWWx.  .'..     cNWWWWx.  .'''''lkkKWMk.             //
//            .xMMXkkxolc,'''''''''''''';lodxkkkkx:''...    .;;;;;,....''...   .;;;;;cdxo:'''',lxkKWMk.             //
//            .lOOO00Okkd:;;,'''''''',;;lxkkkkkkkx:'''''.         ..''''''''.        ;KMXl'',;:okkKWMk.             //
//               .lNWXOkkxxd:''''''''cdxxkkkkkkkkx:''''''..........''''''''''........lXMXl',lxxxkkKWMk.             //
//                .:cxKX0kkxolllllllldkkkkkkkkkkkx:'''''''''''';oddddo;',cdddddc'''''lXMNxlldkk0KKklc,              //
//                   ;0NKOOOOOOOOOOOOkkkkkkkkkkxxd:''''''''''''cOKKKKOc',d0KKK0o,''''lKNX0OOOOOKXXc                 //
//                    ..cKNNNNNNNNNNNKkkkkkkkkxc;;,'''''''''''',:::::;,'';:::::;''''',::l0NNNNXo'..                 //
//                      .ldddddddxKWWKkkkkkkkkd:''.....................................';OMW0xo'                    //
//                                oNWKOkkkkkkkd:'..                                   .';OMX:                       //
//                                .,;dXXKkkkkkd:'.                                    .':0MX:                       //
//                                   lNMXOkkkkd:'.                                    .':0MX:                       //
//                                   cNMXOkkkkd:'.                                    .':0MX:                       //
//                                   .;:dKXKOkd:''...                              ....':0MX:                       //
//                                      ,k0000ko::,'..                            ..',::lx0k,                       //
//                                        .:KWWNNKl''..............................''lKN0;.                         //
//                                         .coooooddddddddddddddddddddddddddddddddddddooc.                          //
//                                               .dNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNd.                             //
//                                                .''''''''''''''''''''''''''''''''''.                              //
//                                                                                                                  //
//                                                                                                                  //
//                                                                                                                  //
//                                                                                                                  //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

contract Chimpers is ERC721CollectionBase, ERC721, AdminControl {

    constructor(address signingAddress) ERC721("Chimpers", "CHIMP") {
        _initialize(
          // Total supply
          5555,
          // Purchase price (0.07 ETH)
          70000000000000000,
          // Purchase limit (0 for no limit)
          0,
          // Transaction limit (0 for no limit)
          0,
          // Presale purchase price (0.07 ETH)
          70000000000000000,
          // Presale purchase limit (0 for no limit)
          0,
          signingAddress,
          // Use dynamic presale purchase limit
          true);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721CollectionBase, ERC721, AdminControl) returns (bool) {
        return ERC721CollectionBase.supportsInterface(interfaceId) || ERC721.supportsInterface(interfaceId) || AdminControl.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Collection-withdraw}.
     */
    function withdraw(address payable recipient, uint256 amount) external override adminRequired {
        _withdraw(recipient, amount);
    }

    /**
     * @dev See {IERC721Collection-setTransferLocked}.
     */
    function setTransferLocked(bool locked) external override adminRequired {
        _setTransferLocked(locked);
    }

    /**
     * @dev See {IERC721Collection-premint}.
     */
    function premint(uint16 amount) external override adminRequired {
        _premint(amount, owner());
    }

    /**
     * @dev See {IERC721Collection-premint}.
     */
    function premint(address[] calldata addresses) external override adminRequired {
        _premint(addresses);
    }

    /**
     * @dev See {IERC721Collection-activate}.
     */
    function activate(uint256 startTime_, uint256 duration, uint256 presaleInterval_, uint256 claimStartTime_, uint256 claimEndTime_) external override adminRequired {
        _activate(startTime_, duration, presaleInterval_, claimStartTime_, claimEndTime_);
    }

    /**
     * @dev See {IERC721Collection-deactivate}.
     */
    function deactivate() external override adminRequired {
        _deactivate();
    }

    /**
     *  @dev See {IERC721Collection-setTokenURIPrefix}.
     */
    function setTokenURIPrefix(string calldata prefix) external override adminRequired {
        _setTokenURIPrefix(prefix);
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return _prefixURI;
    }
    
    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override (ERC721, ERC721CollectionBase) returns (uint256) {
        return ERC721.balanceOf(owner);
    }

    /**
     * @dev mint implementation
     */
    function _mint(address to, uint256 tokenId) internal override (ERC721, ERC721CollectionBase) {
        ERC721._mint(to, tokenId);
    }

    /**
     * @dev See {ERC721-_beforeTokenTranfser}.
     */
    function _beforeTokenTransfer(address from, address, uint256) internal virtual override {
        _validateTokenTransferability(from);
    }
    
    /**
     * @dev Update royalties
     */
    function updateRoyalties(address payable recipient, uint256 bps) external adminRequired {
      _updateRoyalties(recipient, bps);
    }

}

File 2 of 19 : ERC721CollectionBase.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/Strings.sol";

import "./IERC721Collection.sol";
import "./CollectionBase.sol";

/**
 * ERC721 Collection Drop Contract (Base)
 */
abstract contract ERC721CollectionBase is CollectionBase, IERC721Collection {
    
    using Strings for uint256;

    // Immutable variables that should only be set by the constructor or initializer
    uint16 public transactionLimit;
    uint16 public purchaseMax;
    uint16 public purchaseLimit;
    uint256 public purchasePrice;
    uint16 public presalePurchaseLimit;
    uint256 public presalePurchasePrice;
    bool public useDynamicPresalePurchaseLimit;

    // Minted token information
    uint16 public purchaseCount;
    mapping(address => uint16) internal _addressMintCount;

    // Token URI configuration
    string internal _prefixURI;

    uint256 private _royaltyBps;
    address payable private _royaltyRecipient;
    bytes4 private constant _INTERFACE_ID_ROYALTIES_CREATORCORE = 0xbb3bafd6;
    bytes4 private constant _INTERFACE_ID_ROYALTIES_EIP2981 = 0x2a55205a;
    bytes4 private constant _INTERFACE_ID_ROYALTIES_RARIBLE = 0xb7799584;

    // Transfer lock
    bool public transferLocked;

    function _initialize(uint16 purchaseMax_, uint256 purchasePrice_, uint16 purchaseLimit_, uint16 transactionLimit_, uint256 presalePurchasePrice_, uint16 presalePurchaseLimit_, address signingAddress, bool useDynamicPresalePurchaseLimit_) internal {
        require(_signingAddress == address(0), "Already initialized");
        purchaseMax = purchaseMax_;
        purchasePrice = purchasePrice_;
        purchaseLimit = purchaseLimit_;
        transactionLimit = transactionLimit_;
        presalePurchasePrice = presalePurchasePrice_;
        presalePurchaseLimit = presalePurchaseLimit_;
        _signingAddress = signingAddress;
        useDynamicPresalePurchaseLimit = useDynamicPresalePurchaseLimit_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165) returns (bool) {
      return interfaceId == type(IERC721Collection).interfaceId ||interfaceId == _INTERFACE_ID_ROYALTIES_CREATORCORE
          || interfaceId == _INTERFACE_ID_ROYALTIES_EIP2981 || interfaceId == _INTERFACE_ID_ROYALTIES_RARIBLE;
    }

    /**
     * Premint tokens to the owner.  Sale must not be active.
     */
    function _premint(uint16 amount, address owner) internal virtual {
        require(!active, "Already active");
        for (uint i = 0; i < amount; i++) {
            _mint(owner);
        }
    }

    /**
     * Premint tokens to the list of addresses.  Sale must not be active.
     */
    function _premint(address[] calldata addresses) internal virtual {
        require(!active, "Already active");
        for (uint i = 0; i < addresses.length; i++) {
            _mint(addresses[i]);
        }
    }

    /**
     * @dev override if you want to perform different mint functionality
     */
    function _mint(address to) internal virtual {
        purchaseCount++;
        
        // Mint token
        _mint(to, purchaseCount);

        emit Unveil(purchaseCount, address(this), purchaseCount);
    }

    /**
     * @dev override to define mint functionality
     */
    function _mint(address to, uint256 tokenId) internal virtual;

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual returns (uint256);

    /**
     * @dev Use a prefix uri for all tokens (<PREFIX><TOKEN_ID>).
     */
    function _setTokenURIPrefix(string calldata prefix) internal virtual {
        _prefixURI = prefix;
    }

    /**
     * Validate price (override for custom pricing mechanics)
     */
    function _validatePrice(uint16 amount) internal virtual {
      require(msg.value == amount*purchasePrice, "Invalid purchase amount sent");
    }


    /**
     * Validate price (override for custom pricing mechanics)
     */
    function _validatePresalePrice(uint16 amount) internal virtual {
      require(msg.value == amount*presalePurchasePrice, "Invalid purchase amount sent");
    }

    /**
     * If enabled, lock token transfers until admin unlocks.
     */
    function _validateTokenTransferability(address from) internal view {
        require(!transferLocked || from == address(0), "Transfer locked until sale ends");
    }

    /**
     * Set whether or not token transfers are locked till end of sale
     */
    function _setTransferLocked(bool locked) internal {
        transferLocked = locked;
    }

    /**
     * @dev See {IERC721Collection-claim}.
     */
    function claim(uint16 amount, bytes32 message, bytes calldata signature, string calldata nonce) external virtual override {
        _validateClaimRestrictions();
        _validateClaimRequest(message, signature, nonce, amount);
        for (uint i = 0; i < amount; i++) {
            _mint(msg.sender);
        }
    }
    
    /**
     * @dev See {IERC721Collection-purchase}.
     */
    function purchase(uint16 amount, bytes32 message, bytes calldata signature, string calldata nonce) public payable virtual override {
        _validatePurchaseRestrictions();

        bool isPresale = _isPresale();
        uint16 mintCount = _addressMintCount[msg.sender];

        // Check purchase amounts
        require(amount <= purchaseRemaining() && ((isPresale && useDynamicPresalePurchaseLimit) || transactionLimit == 0 || amount <= transactionLimit), "Too many requested");

        if (isPresale) {
            require(
                useDynamicPresalePurchaseLimit ||
                (
                    // check amount is under presale limit
                    (presalePurchaseLimit == 0 || (presalePurchaseLimit > mintCount && amount <= (presalePurchaseLimit-mintCount))) &&
                    // check amount is also under purchase limit
                    (purchaseLimit == 0 || (purchaseLimit > mintCount && amount <= (purchaseLimit-mintCount)))
                ),
                "Too many requested"
            );
            _validatePresalePrice(amount);
            _addressMintCount[msg.sender] += amount;
        } else {
            require(purchaseLimit == 0 || (purchaseLimit > mintCount && amount <= (purchaseLimit-_addressMintCount[msg.sender])), "Too many requested");
            _validatePrice(amount);
            if (purchaseLimit != 0) {
                _addressMintCount[msg.sender] += amount;
            }
        }

        if (isPresale && useDynamicPresalePurchaseLimit) {
            _validatePurchaseRequestWithAmount(message, signature, nonce, amount);
        } else {
            _validatePurchaseRequest(message, signature, nonce);
        }
        
        for (uint i = 0; i < amount; i++) {
            _mint(msg.sender);
        }
    }

    /**
     * @dev See {IERC721Collection-state}
     */
    function state() external override view returns(CollectionState memory) {
        return CollectionState(transactionLimit, purchaseMax, purchaseRemaining(), purchasePrice, purchaseLimit, presalePurchasePrice, presalePurchaseLimit, _addressMintCount[msg.sender], active, startTime, endTime, presaleInterval, claimStartTime, claimEndTime, useDynamicPresalePurchaseLimit);
    }

    /**
     * @dev See {IERC721Collection-purchaseRemaining}.
     */
    function purchaseRemaining() public view virtual override returns(uint16) {
        return purchaseMax-purchaseCount;
    }

    /**
     * ROYALTY FUNCTIONS
     */
    function getRoyalties(uint256) external view returns (address payable[] memory recipients, uint256[] memory bps) {
        if (_royaltyRecipient != address(0x0)) {
            recipients = new address payable[](1);
            recipients[0] = _royaltyRecipient;
            bps = new uint256[](1);
            bps[0] = _royaltyBps;
        }
        return (recipients, bps);
    }

    function getFeeRecipients(uint256) external view returns (address payable[] memory recipients) {
        if (_royaltyRecipient != address(0x0)) {
            recipients = new address payable[](1);
            recipients[0] = _royaltyRecipient;
        }
        return recipients;
    }

    function getFeeBps(uint256) external view returns (uint[] memory bps) {
        if (_royaltyRecipient != address(0x0)) {
            bps = new uint256[](1);
            bps[0] = _royaltyBps;
        }
        return bps;
    }

    function royaltyInfo(uint256, uint256 value) external view returns (address, uint256) {
        return (_royaltyRecipient, value*_royaltyBps/10000);
    }

    /**
     * @dev Update royalties
     */
    function _updateRoyalties(address payable recipient, uint256 bps) internal {
        _royaltyRecipient = recipient;
        _royaltyBps = bps;
    }
}

File 3 of 19 : AdminControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./IAdminControl.sol";

abstract contract AdminControl is Ownable, IAdminControl, ERC165 {
    using EnumerableSet for EnumerableSet.AddressSet;

    // Track registered admins
    EnumerableSet.AddressSet private _admins;

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

    /**
     * @dev Only allows approved admins to call the specified function
     */
    modifier adminRequired() {
        require(owner() == msg.sender || _admins.contains(msg.sender), "AdminControl: Must be owner or admin");
        _;
    }   

    /**
     * @dev See {IAdminControl-getAdmins}.
     */
    function getAdmins() external view override returns (address[] memory admins) {
        admins = new address[](_admins.length());
        for (uint i = 0; i < _admins.length(); i++) {
            admins[i] = _admins.at(i);
        }
        return admins;
    }

    /**
     * @dev See {IAdminControl-approveAdmin}.
     */
    function approveAdmin(address admin) external override onlyOwner {
        if (!_admins.contains(admin)) {
            emit AdminApproved(admin, msg.sender);
            _admins.add(admin);
        }
    }

    /**
     * @dev See {IAdminControl-revokeAdmin}.
     */
    function revokeAdmin(address admin) external override onlyOwner {
        if (_admins.contains(admin)) {
            emit AdminRevoked(admin, msg.sender);
            _admins.remove(admin);
        }
    }

    /**
     * @dev See {IAdminControl-isAdmin}.
     */
    function isAdmin(address admin) public override view returns (bool) {
        return (owner() == admin || _admins.contains(admin));
    }

}

File 4 of 19 : ERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @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 overridden 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 {
        _setApprovalForAll(_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 || isApprovedForAll(owner, spender) || getApproved(tokenId) == 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);

        _afterTokenTransfer(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);

        _afterTokenTransfer(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 from incorrect owner");
        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);

        _afterTokenTransfer(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 Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @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.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 {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

File 5 of 19 : CollectionBase.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

import "./ICollectionBase.sol";

/**
 * Collection Drop Contract (Base)
 */
abstract contract CollectionBase is ICollectionBase {
    
    using ECDSA for bytes32;
    using Strings for uint256;

    // Immutable variables that should only be set by the constructor or initializer
    address internal _signingAddress;

    // Message nonces
    mapping(bytes32 => bool) private _usedNonces;

    // Sale start/end control
    bool public active;
    uint256 public startTime;
    uint256 public endTime;
    uint256 public presaleInterval;

    // Claim period start/end control
    uint256 public claimStartTime;
    uint256 public claimEndTime;

    /**
     * Withdraw funds
     */
    function _withdraw(address payable recipient, uint256 amount) internal {
        (bool success,) = recipient.call{value:amount}("");
        require(success);
    }

    /**
     * Activate the sale
     */
    function _activate(uint256 startTime_, uint256 duration, uint256 presaleInterval_, uint256 claimStartTime_, uint256 claimEndTime_) internal virtual {
        require(!active, "Already active");
        require(startTime_ > block.timestamp, "Cannot activate in the past");
        require(presaleInterval_ <= duration, "Presale Interval cannot be longer than the sale");
        require(claimStartTime_ <= claimEndTime_ && claimEndTime_ <= startTime_, "Invalid claim times");
        startTime = startTime_;
        endTime = startTime + duration;
        presaleInterval = presaleInterval_;
        claimStartTime = claimStartTime_;
        claimEndTime = claimEndTime_;
        active = true;

        emit CollectionActivated(startTime, endTime, presaleInterval, claimStartTime, claimEndTime);
    }

    /**
     * Deactivate the sale
     */
    function _deactivate() internal virtual {
        startTime = 0;
        endTime = 0;
        active = false;
        claimStartTime = 0;
        claimEndTime = 0;

        emit CollectionDeactivated();
    }

    function _getNonceBytes32(string memory nonce) internal pure returns(bytes32 nonceBytes32) {
        bytes memory nonceBytes = bytes(nonce);
        require(nonceBytes.length <= 32, "Invalid nonce");
        assembly {
            nonceBytes32 := mload(add(nonce, 32))
        }
    }

    /**
     * Validate claim signature
     */
    function _validateClaimRequest(bytes32 message, bytes calldata signature, string calldata nonce, uint16 amount) internal virtual {
        _validatePurchaseRequestWithAmount(message, signature, nonce, amount);
    }

    /**
     * Validate claim restrictions
     */
    function _validateClaimRestrictions() internal virtual {
        require(active, "Inactive");
        require(block.timestamp >= claimStartTime && block.timestamp <= claimEndTime, "Outside claim period.");
    }

    /**
     * Validate purchase signature
     */
    function _validatePurchaseRequest(bytes32 message, bytes calldata signature, string calldata nonce) internal virtual { 
        // Verify nonce usage/re-use
        bytes32 nonceBytes32 = _getNonceBytes32(nonce);
        require(!_usedNonces[nonceBytes32], "Cannot replay transaction");
        // Verify valid message based on input variables
        bytes32 expectedMessage = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", (20+bytes(nonce).length).toString(), msg.sender, nonce));
        require(message == expectedMessage, "Malformed message");
        // Verify signature was performed by the expected signing address
        address signer = message.recover(signature);
        require(signer == _signingAddress, "Invalid signature");

        _usedNonces[nonceBytes32] = true;
    }

    /**
     * Validate purchase signature with amount
     */
    function _validatePurchaseRequestWithAmount(bytes32 message, bytes calldata signature, string calldata nonce, uint16 amount) internal virtual {
        // Verify nonce usage/re-use
        bytes32 nonceBytes32 = _getNonceBytes32(nonce);
        require(!_usedNonces[nonceBytes32], "Cannot replay transaction");
        // Verify valid message based on input variables
        bytes32 expectedMessage = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", (20+bytes(nonce).length+bytes(uint256(amount).toString()).length).toString(), msg.sender, nonce, uint256(amount).toString()));
        require(message == expectedMessage, "Malformed message");
        // Verify signature was performed by the expected signing address
        address signer = message.recover(signature);
        require(signer == _signingAddress, "Invalid signature");

        _usedNonces[nonceBytes32] = true;
    }

    /**
     * Perform purchase restriciton checks. Override if more logic is needed
     */
    function _validatePurchaseRestrictions() internal virtual {
        require(active, "Inactive");
        require(block.timestamp >= startTime, "Purchasing not active");
    }

    /**
     * @dev See {ICollectionBase-nonceUsed}.
     */
    function nonceUsed(string memory nonce) external view override returns(bool) {
        bytes32 nonceBytes32 = _getNonceBytes32(nonce);
        return _usedNonces[nonceBytes32];
    }

    /**
     * @dev Check if currently in presale
     */
    function _isPresale() internal view returns (bool) {
        return block.timestamp > startTime && block.timestamp - startTime < presaleInterval;
    }
}

File 6 of 19 : IERC721Collection.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

import "./ICollectionBase.sol";

/**
 * @dev ERC721 Collection Interface
 */
interface IERC721Collection is ICollectionBase, IERC165 {

    event Unveil(uint256 collectibleId, address tokenAddress, uint256 tokenId);

    struct CollectionState {
        uint16 transactionLimit;
        uint16 purchaseMax;
        uint16 purchaseRemaining;
        uint256 purchasePrice;
        uint16 purchaseLimit;
        uint256 presalePurchasePrice;
        uint16 presalePurchaseLimit;
        uint16 purchaseCount;
        bool active;
        uint256 startTime;
        uint256 endTime;
        uint256 presaleInterval;
        uint256 claimStartTime;
        uint256 claimEndTime;
        bool useDynamicPresalePurchaseLimit;
    }

    /**
     * @dev Pre-mint
     */
    function premint(uint16 amount) external;

    function premint(address[] calldata addresses) external;

    /**
     *  @dev set the tokenURI prefix
     */
    function setTokenURIPrefix(string calldata prefix) external;

    /**
     * @dev Withdraw funds
     */
    function withdraw(address payable recipient, uint256 amount) external;

    /**
     * @dev Set whether or not token transfers are locked until end of sale.
     * @param locked Whether or not transfers are locked
     */
    function setTransferLocked(bool locked) external;

    /**
     * @dev Activate the contract
     */
    function activate(uint256 startTime_, uint256 duration, uint256 presaleInterval_, uint256 claimStartTime_, uint256 claimEndTime_) external;

    /**
     * @dev Deactivate the contract
     */
    function deactivate() external;

    /**
     * @dev claim
     */
    function claim(uint16 amount, bytes32 message, bytes calldata signature, string calldata nonce) external;
    
    /**
     * @dev purchase
     */
    function purchase(uint16 amount, bytes32 message, bytes calldata signature, string calldata nonce) external payable;

    /**
     * @dev returns the collection state
     */
    function state() external view returns(CollectionState memory);

    /**
     * @dev Get number of tokens left
     */
    function purchaseRemaining() external view returns(uint16);

}

File 7 of 19 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @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);
    }

    /**
     * @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);
    }
}

File 8 of 19 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @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;
    }
}

File 9 of 19 : 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 10 of 19 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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);
            }
        }
    }
}

File 11 of 19 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @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);
}

File 12 of 19 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @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 `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 13 of 19 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 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 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 14 of 19 : IAdminControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Interface for admin control
 */
interface IAdminControl is IERC165 {

    event AdminApproved(address indexed account, address indexed sender);
    event AdminRevoked(address indexed account, address indexed sender);

    /**
     * @dev gets address of all admins
     */
    function getAdmins() external view returns (address[] memory);

    /**
     * @dev add an admin.  Can only be called by contract owner.
     */
    function approveAdmin(address admin) external;

    /**
     * @dev remove an admin.  Can only be called by contract owner.
     */
    function revokeAdmin(address admin) external;

    /**
     * @dev checks whether or not given address is an admin
     * Returns True if they are
     */
    function isAdmin(address admin) external view returns (bool);

}

File 15 of 19 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 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 {
        _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 16 of 19 : EnumerableSet.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

File 17 of 19 : ICollectionBase.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

/**
 * @dev Collection Interface
 */
interface ICollectionBase {

    event CollectionActivated(uint256 startTime, uint256 endTime, uint256 presaleInterval, uint256 claimStartTime, uint256 claimEndTime);
    event CollectionDeactivated();

    /**
     * @dev Check if nonce has been used
     */
    function nonceUsed(string memory nonce) external view returns(bool);
}

File 18 of 19 : 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 19 of 19 : ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"signingAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"AdminApproved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"AdminRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"presaleInterval","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claimStartTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claimEndTime","type":"uint256"}],"name":"CollectionActivated","type":"event"},{"anonymous":false,"inputs":[],"name":"CollectionDeactivated","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"collectibleId","type":"uint256"},{"indexed":false,"internalType":"address","name":"tokenAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Unveil","type":"event"},{"inputs":[{"internalType":"uint256","name":"startTime_","type":"uint256"},{"internalType":"uint256","name":"duration","type":"uint256"},{"internalType":"uint256","name":"presaleInterval_","type":"uint256"},{"internalType":"uint256","name":"claimStartTime_","type":"uint256"},{"internalType":"uint256","name":"claimEndTime_","type":"uint256"}],"name":"activate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"active","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"admin","type":"address"}],"name":"approveAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"amount","type":"uint16"},{"internalType":"bytes32","name":"message","type":"bytes32"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"string","name":"nonce","type":"string"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimEndTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimStartTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"deactivate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"endTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAdmins","outputs":[{"internalType":"address[]","name":"admins","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"bps","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getRoyalties","outputs":[{"internalType":"address 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rnalType":"uint16","name":"transactionLimit","type":"uint16"},{"internalType":"uint16","name":"purchaseMax","type":"uint16"},{"internalType":"uint16","name":"purchaseRemaining","type":"uint16"},{"internalType":"uint256","name":"purchasePrice","type":"uint256"},{"internalType":"uint16","name":"purchaseLimit","type":"uint16"},{"internalType":"uint256","name":"presalePurchasePrice","type":"uint256"},{"internalType":"uint16","name":"presalePurchaseLimit","type":"uint16"},{"internalType":"uint16","name":"purchaseCount","type":"uint16"},{"internalType":"bool","name":"active","type":"bool"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"uint256","name":"presaleInterval","type":"uint256"},{"internalType":"uint256","name":"claimStartTime","type":"uint256"},{"internalType":"uint256","name":"claimEndTime","type":"uint256"},{"internalType":"bool","name":"useDynamicPresalePurchaseLimit","type":"bool"}],"internalType":"struct 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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000720b18fdbc5ed327d67b56f94a2748470b658b96

-----Decoded View---------------
Arg [0] : signingAddress (address): 0x720b18fdbc5ed327d67b56f94a2748470b658b96

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000720b18fdbc5ed327d67b56f94a2748470b658b96


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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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.