Contract 0xdE996C385948566A3987090457ed8dbD43Ca845a 2

 
 
Txn Hash
Method
Block
From
To
Value
0x51ad1fe031c47b45b88bb947a94282762087f516339f9cdd6c9fea2b80fe2f5cSet Approval For...160704972022-11-28 19:12:2326 mins agoENS Name sudotrader.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.0005976 12.94925818
0xf73a0ecd32700152880b83097073a725ebefb7bd5d7899384baae0337775776cSet Approval For...160698462022-11-28 17:01:232 hrs 37 mins agoENS Name terranaomi.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00127831 27.68479986
0x0eb03e11305bc9e94ab7075a5903e47846f2ef2c7995738feec86aa4d3a2b9d9Set Approval For...160678762022-11-28 10:26:119 hrs 12 mins ago0x0e7a00cec9ce9cec1b86f4cee93bbb02c82cde33 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00066494 14.4084312
0x5d865f79153b696127f4ac400aa4d07abfe09f596d1ca4a667bbd6076370b762Set Approval For...160659622022-11-28 4:02:2315 hrs 36 mins agoENS Name backseats.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00047875 10.36841024
0x277c0d86c1a7bf4b5f47edd735743e4bf9be20aeef8c862cc4c6649a97732ee7Set Approval For...160659562022-11-28 4:01:1115 hrs 37 mins agoENS Name backseats.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00052721 11.42395667
0xb12e282f6a0d80b070f48aeceb3a09c876d11bb97ee2d7a88a108db1d8974961Set Approval For...160559632022-11-26 18:30:592 days 1 hr agoENS Name samvip.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00052791 11.43918733
0x5a556c14810ab3ed154441eadac3e1d08c9d7e67d5b8dcd4447afcc83d66d372Set Approval For...160552912022-11-26 16:15:472 days 3 hrs agoENS Name bravozuloo.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00057837 12.53245099
0x2fc107890402fea1f98d004c9199205974f22577c5447481c83bfe3d0124414eSet Approval For...160544232022-11-26 13:20:592 days 6 hrs ago0x99bf6fdf06329ad4a6bdf5ea02a4b881fc748faf IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00048684 10.54918402
0x0ce72834d075a180290fc076f22c26bdc82312222ae29d0c9e529ec50998a873Set Approval For...160533752022-11-26 9:49:592 days 9 hrs ago0xe6fc5c50c8f6df408ba4d1b56bcd9756c69e2304 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00044941 9.73303784
0x2cc580a0fa9554e6960c85d3b3002c4e2f45800061ba960226b41acd1745756aSet Approval For...160533672022-11-26 9:48:232 days 9 hrs ago0x75a37c761ce5c7f44ecbccf4a1b6f94b9adaa95c IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00054397 11.78715743
0x25f74b908b4764fb6a810dfd1425181c5b5cdb6b6e747a59078ab0b58c6defc7Set Approval For...160520542022-11-26 5:24:352 days 14 hrs agoENS Name bearmetaljc.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00048235 10.4518902
0x85b0433b7d7a11957ab9b5643273bc72b6035cf9d7fdd2d279e32807b6755a49Set Approval For...160491892022-11-25 19:49:232 days 23 hrs ago0x15c24e3508f672bb09542d53b02d79810222f3fe IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00051926 11.25176599
0x19ce37ccf9fee2659238500ef3c4703fe893f6299a063a405a5f81e7d80430ebSet Approval For...160469462022-11-25 12:17:233 days 7 hrs ago0x00ef585718b4720a92c0acbac9fd554c7d4d1b37 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00052941 11.46563561
0x6bf97a1bef1de5bea1f54b62f5cd43a6438f9e77c212a5ff10340ba93c4b6cc3Set Approval For...160433202022-11-25 0:07:593 days 19 hrs ago0x9620d464b1a61be55a3a5062e8242c5def9aaab0 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00029999 12.37721176
0xb29af04840e3e6aefb7a5e125a1b3064ae0fa2bde647ad122707801a423ab1bbSet Approval For...160387272022-11-24 8:44:474 days 10 hrs ago0x0e79b7cfc5ff1525a5e273fd5fbb1d2b45907e3f IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00054472 11.80337826
0x54cdcf21d386e238e47fc31c41717eb259fe953838e41b41184980685e6b03e7Set Approval For...160358442022-11-23 23:04:474 days 20 hrs ago0x2d5d08d4359c4005aa3326b49c96fba32dbbbc4e IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00058176 12.60585413
0x839c757b3c1def9c6f2de0973651a16dbc2d96f05e9450c764545c3932bd677bSet Approval For...160344292022-11-23 18:17:235 days 1 hr ago0xd549d9e353d3db39462f0daa55f300b8d9aa005e IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00065372 14.16520911
0xb19609a4a9a9c5be19d15a9cd09c630631f14869e77cd37ba98dae7c54715f45Set Approval For...160280102022-11-22 20:45:235 days 22 hrs ago0x29f871db578bf56c97ecdbcd2c79a44a442ac17c IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00093492 20.24790615
0x4e2a3f1b02e35dae387ef3d5a9433b8d3687476eee6cf2f4f8ba7801e80adbf6Set Approval For...160268732022-11-22 16:55:476 days 2 hrs ago0xfb2b1272da7c993162706dbd5241902aee1dcc61 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00074638 16.17311598
0xa16d764a315245a0f1a0fb969a3ed690b73ed70640f079f78e3de087f2c0596fSet Approval For...160253882022-11-22 11:56:116 days 7 hrs agoENS Name colorblock.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00032642 13.4675075
0xbc808479824312de22cdc3c2f39c38436eea97a3dbf971155e6ae8bb39c5c4a1Set Approval For...160222172022-11-22 1:18:236 days 18 hrs agoENS Name gr3atness.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.0002919 12.04344952
0x3a58929b87d0ff24f8dc6289b5f5a88dcfa2f37b69c0992c1ca168331435adb8Set Approval For...160220102022-11-22 0:36:476 days 19 hrs ago0xb1fe31e251378c8008988261ffb5a39c48743ba0 IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00059413 12.8740519
0x2bfbf75f50e31b913f07cfee9aaf02cdee1a1d52c457e06792ef9319c00ff2b8Safe Transfer Fr...160212182022-11-21 21:57:356 days 21 hrs agoENS Name 0fish0.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00094671 18.20673443
0x9fae27f43e4e4a9bb91eddae4b1635dc507b9afda3cc6d81bc8974802baafad7Set Approval For...160193262022-11-21 15:36:597 days 4 hrs agoENS Name jessgee.eth IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00070627 15.29585882
0xb210d867a7b1b783987bd8409e77efe5f71904b48bada2770488ff82794f0203Set Approval For...160157992022-11-21 3:47:237 days 15 hrs ago0x0db58ef1b0f7bb3d70177bcbfd31bc557fbe8b2a IN  0xde996c385948566a3987090457ed8dbd43ca845a0 Ether0.00027399 11.30429089
[ Download CSV Export 
Latest 2 internal transactions
Parent Txn Hash Block From To Value
0x6e27af8c2d5ee147892a61230aaf05221a971bdc5a13e44bd4633230800f66f8150968582022-07-07 17:47:14144 days 1 hr ago 0xde996c385948566a3987090457ed8dbd43ca845a 0x00d005f436a3c6d8f232e899dad474df18b47f7b44.6394 Ether
0x81636a43efa0428d467ff5acd4093a91d02ba51edbd6d3d908a86918d577cd62144501522022-03-24 16:48:02249 days 2 hrs ago 0xde996c385948566a3987090457ed8dbd43ca845a 0x2a7e6951eacbe25a0e6e7cb34adcc5d9c57d97c4550.54335 Ether
[ Download CSV Export 
Loading

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x998AEA441bE85714F19bCB5399Fdca65D4A075D1

Contract Name:
OriginERC721a_v1

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 17 : OriginERC721a_v1.sol
/*
 * Origin Protocol
 * https://originprotocol.com
 *
 * Released under the MIT license
 * SPDX-License-Identifier: MIT
 * https://github.com/OriginProtocol/nft-launchpad
 *
 * Copyright 2021 Origin Protocol, Inc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity ^0.8.0;

import 'erc721a/contracts/ERC721A.sol';

import '@openzeppelin/contracts/access/AccessControl.sol';
import '@openzeppelin/contracts/utils/cryptography/ECDSA.sol';
import '@openzeppelin/contracts/finance/PaymentSplitter.sol';

contract OriginERC721a_v1 is ERC721A, PaymentSplitter, AccessControl {
    bytes32 public constant MINTER_ROLE = keccak256('MINTER');
    string public baseURI;
    uint256 public maxSupply;

    constructor(
        string memory _name,
        string memory _symbol,
        string memory _base,
        uint256 _maxSupply,
        address _minter,
        address[] memory _payees,
        uint256[] memory _shares
    ) ERC721A(_name, _symbol) PaymentSplitter(_payees, _shares) {
        require(_maxSupply > 0);
        baseURI = _base;
        maxSupply = _maxSupply;

        _setupRole(DEFAULT_ADMIN_ROLE, _msgSender());

        if (_minter != address(0)) {
            _setupRole(MINTER_ROLE, _minter);
        } else {
            _setupRole(MINTER_ROLE, _msgSender());
        }
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC721A, AccessControl)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }

    function _baseURI() internal view override returns (string memory) {
        return baseURI;
    }

    /**
     * @notice Return URI to contract metadata JSON file
     * @return URI to JSON file
     */
    function contractURI() public view returns (string memory) {
        string memory base = _baseURI();
        return
            bytes(base).length > 0
                ? string(abi.encodePacked(base, 'contract.json'))
                : '';
    }

    function setBaseURI(string calldata _base)
        external
        onlyRole(DEFAULT_ADMIN_ROLE)
    {
        baseURI = _base;
    }

    /**
     * @notice Owner provided signature allows anyone to mint an NFT
     * @param to address that will own the NFT
     * @param count number of NFTs to mint
     * @param price total ETH that must be sent to the contract to mint NFTs
     * @param mintLimit max number of NFTs that can be minted to this owner
     * @param expires block timestamp after which this call is no longer valid
     */
    function mint(
        address to,
        uint256 count,
        uint256 price,
        uint256 mintLimit,
        uint256 expires,
        bytes memory sig
    ) external payable {
        require(_numberMinted(to) + count <= mintLimit, 'Max mint limit');
        require(totalSupply() + count <= maxSupply, 'Max supply exceeded');
        require(block.timestamp <= expires, 'Signature expired');
        require(msg.value >= price, 'Not enough ETH');

        bytes32 msgHash = keccak256(
            abi.encode(
                block.chainid,
                address(this),
                _msgSender(),
                to,
                count,
                price,
                mintLimit,
                expires
            )
        );

        address addr = ECDSA.recover(
            ECDSA.toEthSignedMessageHash(msgHash),
            sig
        );
        require(hasRole(MINTER_ROLE, addr), 'Invalid signer');

        _safeMint(to, count);
    }

    function _startTokenId() internal view virtual override returns (uint256) {
        return 1;
    }
}

File 2 of 17 : ERC721A.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintedQueryForZeroAddress();
error BurnedQueryForZeroAddress();
error AuxQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerIndexOutOfBounds();
error OwnerQueryForNonexistentToken();
error TokenIndexOutOfBounds();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
        // For miscellaneous variable(s) pertaining to the address
        // (e.g. number of whitelist mint slots used).
        // If there are multiple variables, please pack them into a uint64.
        uint64 aux;
    }

    // The tokenId of the next token to be minted.
    uint256 internal _currentIndex;

    // The number of tokens burned.
    uint256 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

    // 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;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex - _startTokenId() times
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to _startTokenId()
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @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 override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert MintedQueryForZeroAddress();
        return uint256(_addressData[owner].numberMinted);
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert BurnedQueryForZeroAddress();
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        if (owner == address(0)) revert AuxQueryForZeroAddress();
        return _addressData[owner].aux;
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        if (owner == address(0)) revert AuxQueryForZeroAddress();
        _addressData[owner].aux = aux;
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr && curr < _currentIndex) {
                TokenOwnership memory ownership = _ownerships[curr];
                if (!ownership.burned) {
                    if (ownership.addr != address(0)) {
                        return ownership;
                    }
                    // Invariant:
                    // There will always be an ownership that has an address and is not burned
                    // before an ownership that does not have an address and is not burned.
                    // Hence, curr will not underflow.
                    while (true) {
                        curr--;
                        ownership = _ownerships[curr];
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                    }
                }
            }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return ownershipOf(tokenId).addr;
    }

    /**
     * @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) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

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

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

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
            revert ApprovalCallerNotOwnerNorApproved();
        }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public override {
        if (operator == _msgSender()) revert ApproveToCaller();

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

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _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 {
        _transfer(from, to, tokenId);
        if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

    /**
     * @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`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return _startTokenId() <= tokenId && tokenId < _currentIndex &&
            !_ownerships[tokenId].burned;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        _mint(to, quantity, _data, true);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(
        address to,
        uint256 quantity,
        bytes memory _data,
        bool safe
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (safe && to.isContract()) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex != end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex != end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * 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
    ) private {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
            isApprovedForAll(prevOwnership.addr, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            _ownerships[tokenId].addr = to;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @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 {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        _beforeTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[prevOwnership.addr].balance -= 1;
            _addressData[prevOwnership.addr].numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            _ownerships[tokenId].addr = prevOwnership.addr;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);
            _ownerships[tokenId].burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(prevOwnership.addr, address(0), tokenId);
        _afterTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

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

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target 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 _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
            return retval == IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * 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, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

File 3 of 17 : AccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

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

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

File 4 of 17 : ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 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));
    }
}

File 5 of 17 : PaymentSplitter.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (finance/PaymentSplitter.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/utils/SafeERC20.sol";
import "../utils/Address.sol";
import "../utils/Context.sol";

/**
 * @title PaymentSplitter
 * @dev This contract allows to split Ether payments among a group of accounts. The sender does not need to be aware
 * that the Ether will be split in this way, since it is handled transparently by the contract.
 *
 * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each
 * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim
 * an amount proportional to the percentage of total shares they were assigned.
 *
 * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the
 * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release}
 * function.
 *
 * NOTE: This contract assumes that ERC20 tokens will behave similarly to native tokens (Ether). Rebasing tokens, and
 * tokens that apply fees during transfers, are likely to not be supported as expected. If in doubt, we encourage you
 * to run tests before sending real value to this contract.
 */
contract PaymentSplitter is Context {
    event PayeeAdded(address account, uint256 shares);
    event PaymentReleased(address to, uint256 amount);
    event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount);
    event PaymentReceived(address from, uint256 amount);

    uint256 private _totalShares;
    uint256 private _totalReleased;

    mapping(address => uint256) private _shares;
    mapping(address => uint256) private _released;
    address[] private _payees;

    mapping(IERC20 => uint256) private _erc20TotalReleased;
    mapping(IERC20 => mapping(address => uint256)) private _erc20Released;

    /**
     * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at
     * the matching position in the `shares` array.
     *
     * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no
     * duplicates in `payees`.
     */
    constructor(address[] memory payees, uint256[] memory shares_) payable {
        require(payees.length == shares_.length, "PaymentSplitter: payees and shares length mismatch");
        require(payees.length > 0, "PaymentSplitter: no payees");

        for (uint256 i = 0; i < payees.length; i++) {
            _addPayee(payees[i], shares_[i]);
        }
    }

    /**
     * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully
     * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the
     * reliability of the events, and not the actual splitting of Ether.
     *
     * To learn more about this see the Solidity documentation for
     * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback
     * functions].
     */
    receive() external payable virtual {
        emit PaymentReceived(_msgSender(), msg.value);
    }

    /**
     * @dev Getter for the total shares held by payees.
     */
    function totalShares() public view returns (uint256) {
        return _totalShares;
    }

    /**
     * @dev Getter for the total amount of Ether already released.
     */
    function totalReleased() public view returns (uint256) {
        return _totalReleased;
    }

    /**
     * @dev Getter for the total amount of `token` already released. `token` should be the address of an IERC20
     * contract.
     */
    function totalReleased(IERC20 token) public view returns (uint256) {
        return _erc20TotalReleased[token];
    }

    /**
     * @dev Getter for the amount of shares held by an account.
     */
    function shares(address account) public view returns (uint256) {
        return _shares[account];
    }

    /**
     * @dev Getter for the amount of Ether already released to a payee.
     */
    function released(address account) public view returns (uint256) {
        return _released[account];
    }

    /**
     * @dev Getter for the amount of `token` tokens already released to a payee. `token` should be the address of an
     * IERC20 contract.
     */
    function released(IERC20 token, address account) public view returns (uint256) {
        return _erc20Released[token][account];
    }

    /**
     * @dev Getter for the address of the payee number `index`.
     */
    function payee(uint256 index) public view returns (address) {
        return _payees[index];
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the
     * total shares and their previous withdrawals.
     */
    function release(address payable account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = address(this).balance + totalReleased();
        uint256 payment = _pendingPayment(account, totalReceived, released(account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _released[account] += payment;
        _totalReleased += payment;

        Address.sendValue(account, payment);
        emit PaymentReleased(account, payment);
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of `token` tokens they are owed, according to their
     * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20
     * contract.
     */
    function release(IERC20 token, address account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = token.balanceOf(address(this)) + totalReleased(token);
        uint256 payment = _pendingPayment(account, totalReceived, released(token, account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _erc20Released[token][account] += payment;
        _erc20TotalReleased[token] += payment;

        SafeERC20.safeTransfer(token, account, payment);
        emit ERC20PaymentReleased(token, account, payment);
    }

    /**
     * @dev internal logic for computing the pending payment of an `account` given the token historical balances and
     * already released amounts.
     */
    function _pendingPayment(
        address account,
        uint256 totalReceived,
        uint256 alreadyReleased
    ) private view returns (uint256) {
        return (totalReceived * _shares[account]) / _totalShares - alreadyReleased;
    }

    /**
     * @dev Add a new payee to the contract.
     * @param account The address of the payee to add.
     * @param shares_ The number of shares owned by the payee.
     */
    function _addPayee(address account, uint256 shares_) private {
        require(account != address(0), "PaymentSplitter: account is the zero address");
        require(shares_ > 0, "PaymentSplitter: shares are 0");
        require(_shares[account] == 0, "PaymentSplitter: account already has shares");

        _payees.push(account);
        _shares[account] = shares_;
        _totalShares = _totalShares + shares_;
        emit PayeeAdded(account, shares_);
    }
}

File 6 of 17 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

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

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

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

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

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

File 7 of 17 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 8 of 17 : 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 9 of 17 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

File 10 of 17 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

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

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

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

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

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

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

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

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

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

File 11 of 17 : 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 12 of 17 : 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 13 of 17 : 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 14 of 17 : 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 15 of 17 : IAccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

File 16 of 17 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 17 of 17 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

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

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"string","name":"_base","type":"string"},{"internalType":"uint256","name":"_maxSupply","type":"uint256"},{"internalType":"address","name":"_minter","type":"address"},{"internalType":"address[]","name":"_payees","type":"address[]"},{"internalType":"uint256[]","name":"_shares","type":"uint256[]"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"MintedQueryForZeroAddress","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"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":true,"internalType":"contract IERC20","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ERC20PaymentReleased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"PayeeAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReleased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","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"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"count","type":"uint256"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"mintLimit","type":"uint256"},{"internalType":"uint256","name":"expires","type":"uint256"},{"internalType":"bytes","name":"sig","type":"bytes"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"payee","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"account","type":"address"}],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_base","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"shares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.

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.