Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: None
pragma solidity 0.8.14;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/finance/PaymentSplitter.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/math/SafeCast.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/token/common/ERC2981.sol";
import "erc721a/contracts/ERC721A.sol";
import "./ITether.sol";

contract Subjects is Ownable, ERC721A, ERC2981, PaymentSplitter {
  using SafeCast for uint256;
  using Strings for uint256;
  using ECDSA for bytes32;

  // ERRORS *****************************************************

  error NotActive();
  error SignerNotSet();
  error InvalidAddress();
  error InvalidTime();
  error InvalidSignature();
  error IncorrectPayment();
  error MintLimitExceeded();
  error ZeroBalance();
  error OutOfSupply();
  error OnlyTokenOwner();
  error AlreadyClaimed();
  error OnlyEOA();

  // Storage *****************************************************

  uint256 public SUPPLY_LIMIT = 7777;
  uint256 public MINT_PRICE = 0.089 ether;
  uint256 public PROJECT_D_LIMIT = 250;

  ITether public Tether;

  bool public mintActive;

  bool public projectDActive;
  uint256 public projectDCounter;
  uint256 public projectDPrice;
  mapping(uint256 => uint256) public projectDId;
  mapping(uint256 => uint256) projectDRandoms;

  string public baseURI;
  string public projectDBaseURI;

  address public mintSigner;

  bytes32 private DOMAIN_SEPARATOR;
  bytes32 private TYPEHASH = keccak256("mint(address buyer)");

  address[] private _payees = [0x6a4DadAd3aFff72Ab864C00eccA7650a60446D87, 0x76bf7b1e22C773754EBC608d92f71cc0B5D99d4B];

  uint256[] private _shares = [95, 5];

  // Constructor *****************************************************

  constructor() ERC721A("Subjects", "SUBJECT") PaymentSplitter(_payees, _shares) {
    _setDefaultRoyalty(address(this), 700); // 7% royalties

    uint256 chainId;
    assembly {
      chainId := chainid()
    }

    DOMAIN_SEPARATOR = keccak256(
      abi.encode(
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
        keccak256(bytes("Subjects")),
        keccak256(bytes("1")),
        chainId,
        address(this)
      )
    );
  }

  // Public Methods *****************************************************

  function mintOne(bytes memory signature) external {
    if (!mintActive) revert NotActive();

    _onlyEOA(msg.sender);

    _firstTimeMint(msg.sender);

    _sufficientSupply(1);

    validateSignature(signature);

    _mint(msg.sender, 1);
  }

  function mintTwo(bytes memory signature) external payable {
    if (!mintActive) revert NotActive();

    _onlyEOA(msg.sender);

    _firstTimeMint(msg.sender);

    _sufficientSupply(2);

    validateSignature(signature);

    if (msg.value != MINT_PRICE) revert IncorrectPayment();

    _mint(msg.sender, 2);
  }

  function claimD(uint256 tokenId) external payable {
    if (!projectDActive) revert NotActive();

    if (projectDCounter == PROJECT_D_LIMIT) revert OutOfSupply();

    if (msg.value < projectDPrice) revert IncorrectPayment();

    if (msg.sender != ERC721A.ownerOf(tokenId)) revert OnlyTokenOwner();

    if (projectDId[tokenId] > 0) revert AlreadyClaimed();

    // Pick a random allocation using Fisher-Yates shuffle
    uint256 boundary = PROJECT_D_LIMIT - projectDCounter++;
    uint256 rand = getRandomNumber(boundary);

    projectDId[tokenId] = (projectDRandoms[rand] == 0) ? rand : projectDRandoms[rand];

    projectDRandoms[rand] = projectDRandoms[boundary] == 0 ? boundary : projectDRandoms[boundary];
  }

  // Owner Methods *****************************************************

  function setBaseURI(string calldata newUri) external onlyOwner {
    baseURI = newUri;
  }

  function setMintSigner(address newSigner) external onlyOwner {
    mintSigner = newSigner;
  }

  function setRoyalties(address recipient, uint96 value) external onlyOwner {
    if (recipient == address(0)) revert InvalidAddress();

    _setDefaultRoyalty(recipient, value);
  }

  function setMintActive(bool active) external onlyOwner {
    mintActive = active;
  }

  function setProjectDBaseURI(string calldata newUri) external onlyOwner {
    projectDBaseURI = newUri;
  }

  function setProjectDActive(bool active) external onlyOwner {
    projectDActive = active;
  }

  function setProjectDPrice(uint256 price) external onlyOwner {
    projectDPrice = price;
  }

  function setTether(address tetherAddress) external onlyOwner {
    uint32 size;
    assembly {
      size := extcodesize(tetherAddress)
    }
    if (size == 0) revert InvalidAddress();

    Tether = ITether(tetherAddress);

    try Tether.supportsInterface(type(ITether).interfaceId) returns (bool supported) {
      if (!supported) revert InvalidAddress();
    } catch {
      revert InvalidAddress();
    }
  }

  function withdraw() external onlyOwner {
    if (address(this).balance == 0) revert ZeroBalance();

    for (uint256 i = 0; i < _payees.length; i++) {
      release(payable(payee(i)));
    }
  }

  // Private Methods *****************************************************

  function validateSignature(bytes memory signature) private view {
    if (mintSigner == address(0)) revert SignerNotSet();

    bytes32 digest = keccak256(abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR, keccak256(abi.encode(TYPEHASH, msg.sender))));

    address signer = digest.recover(signature);

    if (signer != mintSigner) revert InvalidSignature();
  }

  /// @dev Returns a pseudo random number between 1 and max
  function getRandomNumber(uint256 max) private view returns (uint256) {
    uint256 number = uint256(keccak256(abi.encodePacked(blockhash(block.number - 1), block.coinbase, block.timestamp, max)));

    return (number % max) + 1;
  }

  function _onlyEOA(address account) internal view {
    if (account != tx.origin || account.code.length > 0) {
      revert OnlyEOA();
    }
  }

  function _sufficientSupply(uint256 amount) internal view {
    if ((totalSupply() + amount) > SUPPLY_LIMIT) {
      revert OutOfSupply();
    }
  }

  function _firstTimeMint(address account) internal view {
    if (_numberMinted(account) > 0) {
      revert MintLimitExceeded();
    }
  }

  // Override Methods *****************************************************

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

  function tokenURI(uint256 tokenId) public view override returns (string memory) {
    // return projectD tokenURI if applicable
    if (projectDId[tokenId] > 0) {
      string memory _projectDBaseURI = projectDBaseURI;
      if (bytes(_projectDBaseURI).length != 0) {
        return string(abi.encodePacked(_projectDBaseURI, projectDId[tokenId].toString()));
      }
    }

    return super.tokenURI(tokenId);
  }

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

  function _afterTokenTransfers(
    address from,
    address to,
    uint256 startTokenId,
    uint256 quantity
  ) internal override {
    super._afterTokenTransfers(from, to, startTokenId, quantity);

    if (address(Tether) != address(0)) {
      unchecked {
        uint256 updatedIndex = startTokenId;
        uint256 end = updatedIndex + quantity;
        do {
          Tether.tether(updatedIndex++);
        } while (updatedIndex < end);
      }
    }
  }

  function supportsInterface(bytes4 interfaceId) public view override(ERC2981, ERC721A) returns (bool) {
    return ERC721A.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId);
  }
}

// SPDX-License-Identifier: None
pragma solidity 0.8.14;

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

interface ITether is IERC165 {
  function tether(uint256 tokenId) external;
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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. The distribution of shares is set at the
 * time of contract deployment and can't be updated thereafter.
 *
 * `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 Getter for the amount of payee's releasable Ether.
     */
    function releasable(address account) public view returns (uint256) {
        uint256 totalReceived = address(this).balance + totalReleased();
        return _pendingPayment(account, totalReceived, released(account));
    }

    /**
     * @dev Getter for the amount of payee's releasable `token` tokens. `token` should be the address of an
     * IERC20 contract.
     */
    function releasable(IERC20 token, address account) public view returns (uint256) {
        uint256 totalReceived = token.balanceOf(address(this)) + totalReleased(token);
        return _pendingPayment(account, totalReceived, released(token, account));
    }

    /**
     * @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 payment = releasable(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 payment = releasable(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_);
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import './IERC721A.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.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';

/**
 * @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, IERC721A {
    using Address for address;
    using Strings for uint256;

    // 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 Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view override 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) {
        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) {
        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) {
        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 {
        _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) if (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) if(!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 virtual 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()) if(!_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;
    }

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    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 {
        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 (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 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) 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;

            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);

        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSender() == from ||
            isApprovedForAll(from, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

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

        // 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;

            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = to;
            currSlot.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;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

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

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        address from = prevOwnership.addr;

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSender() == from ||
                isApprovedForAll(from, _msgSender()) ||
                getApproved(tokenId) == _msgSender());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

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

        // 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 storage addressData = _addressData[from];
            addressData.balance -= 1;
            addressData.numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = from;
            currSlot.startTimestamp = uint64(block.timestamp);
            currSlot.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;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, 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 {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/math/SafeCast.sol)

pragma solidity ^0.8.0;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 *
 * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
 * all math on `uint256` and `int256` and then downcasting.
 */
library SafeCast {
    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
        return uint232(value);
    }

    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     *
     * _Available since v4.2._
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
        return uint136(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v2.5._
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
        return uint104(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     *
     * _Available since v4.2._
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
        return uint72(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v2.5._
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
        return uint40(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v2.5._
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
        return uint24(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v2.5._
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     *
     * _Available since v2.5._
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     *
     * _Available since v3.0._
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toInt248(int256 value) internal pure returns (int248) {
        require(value >= type(int248).min && value <= type(int248).max, "SafeCast: value doesn't fit in 248 bits");
        return int248(value);
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toInt240(int256 value) internal pure returns (int240) {
        require(value >= type(int240).min && value <= type(int240).max, "SafeCast: value doesn't fit in 240 bits");
        return int240(value);
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toInt232(int256 value) internal pure returns (int232) {
        require(value >= type(int232).min && value <= type(int232).max, "SafeCast: value doesn't fit in 232 bits");
        return int232(value);
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     *
     * _Available since v4.7._
     */
    function toInt224(int256 value) internal pure returns (int224) {
        require(value >= type(int224).min && value <= type(int224).max, "SafeCast: value doesn't fit in 224 bits");
        return int224(value);
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toInt216(int256 value) internal pure returns (int216) {
        require(value >= type(int216).min && value <= type(int216).max, "SafeCast: value doesn't fit in 216 bits");
        return int216(value);
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toInt208(int256 value) internal pure returns (int208) {
        require(value >= type(int208).min && value <= type(int208).max, "SafeCast: value doesn't fit in 208 bits");
        return int208(value);
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toInt200(int256 value) internal pure returns (int200) {
        require(value >= type(int200).min && value <= type(int200).max, "SafeCast: value doesn't fit in 200 bits");
        return int200(value);
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toInt192(int256 value) internal pure returns (int192) {
        require(value >= type(int192).min && value <= type(int192).max, "SafeCast: value doesn't fit in 192 bits");
        return int192(value);
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toInt184(int256 value) internal pure returns (int184) {
        require(value >= type(int184).min && value <= type(int184).max, "SafeCast: value doesn't fit in 184 bits");
        return int184(value);
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toInt176(int256 value) internal pure returns (int176) {
        require(value >= type(int176).min && value <= type(int176).max, "SafeCast: value doesn't fit in 176 bits");
        return int176(value);
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toInt168(int256 value) internal pure returns (int168) {
        require(value >= type(int168).min && value <= type(int168).max, "SafeCast: value doesn't fit in 168 bits");
        return int168(value);
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toInt160(int256 value) internal pure returns (int160) {
        require(value >= type(int160).min && value <= type(int160).max, "SafeCast: value doesn't fit in 160 bits");
        return int160(value);
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toInt152(int256 value) internal pure returns (int152) {
        require(value >= type(int152).min && value <= type(int152).max, "SafeCast: value doesn't fit in 152 bits");
        return int152(value);
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toInt144(int256 value) internal pure returns (int144) {
        require(value >= type(int144).min && value <= type(int144).max, "SafeCast: value doesn't fit in 144 bits");
        return int144(value);
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toInt136(int256 value) internal pure returns (int136) {
        require(value >= type(int136).min && value <= type(int136).max, "SafeCast: value doesn't fit in 136 bits");
        return int136(value);
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v3.1._
     */
    function toInt128(int256 value) internal pure returns (int128) {
        require(value >= type(int128).min && value <= type(int128).max, "SafeCast: value doesn't fit in 128 bits");
        return int128(value);
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toInt120(int256 value) internal pure returns (int120) {
        require(value >= type(int120).min && value <= type(int120).max, "SafeCast: value doesn't fit in 120 bits");
        return int120(value);
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toInt112(int256 value) internal pure returns (int112) {
        require(value >= type(int112).min && value <= type(int112).max, "SafeCast: value doesn't fit in 112 bits");
        return int112(value);
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toInt104(int256 value) internal pure returns (int104) {
        require(value >= type(int104).min && value <= type(int104).max, "SafeCast: value doesn't fit in 104 bits");
        return int104(value);
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     *
     * _Available since v4.7._
     */
    function toInt96(int256 value) internal pure returns (int96) {
        require(value >= type(int96).min && value <= type(int96).max, "SafeCast: value doesn't fit in 96 bits");
        return int96(value);
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toInt88(int256 value) internal pure returns (int88) {
        require(value >= type(int88).min && value <= type(int88).max, "SafeCast: value doesn't fit in 88 bits");
        return int88(value);
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toInt80(int256 value) internal pure returns (int80) {
        require(value >= type(int80).min && value <= type(int80).max, "SafeCast: value doesn't fit in 80 bits");
        return int80(value);
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toInt72(int256 value) internal pure returns (int72) {
        require(value >= type(int72).min && value <= type(int72).max, "SafeCast: value doesn't fit in 72 bits");
        return int72(value);
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v3.1._
     */
    function toInt64(int256 value) internal pure returns (int64) {
        require(value >= type(int64).min && value <= type(int64).max, "SafeCast: value doesn't fit in 64 bits");
        return int64(value);
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toInt56(int256 value) internal pure returns (int56) {
        require(value >= type(int56).min && value <= type(int56).max, "SafeCast: value doesn't fit in 56 bits");
        return int56(value);
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toInt48(int256 value) internal pure returns (int48) {
        require(value >= type(int48).min && value <= type(int48).max, "SafeCast: value doesn't fit in 48 bits");
        return int48(value);
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toInt40(int256 value) internal pure returns (int40) {
        require(value >= type(int40).min && value <= type(int40).max, "SafeCast: value doesn't fit in 40 bits");
        return int40(value);
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v3.1._
     */
    function toInt32(int256 value) internal pure returns (int32) {
        require(value >= type(int32).min && value <= type(int32).max, "SafeCast: value doesn't fit in 32 bits");
        return int32(value);
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toInt24(int256 value) internal pure returns (int24) {
        require(value >= type(int24).min && value <= type(int24).max, "SafeCast: value doesn't fit in 24 bits");
        return int24(value);
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v3.1._
     */
    function toInt16(int256 value) internal pure returns (int16) {
        require(value >= type(int16).min && value <= type(int16).max, "SafeCast: value doesn't fit in 16 bits");
        return int16(value);
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     *
     * _Available since v3.1._
     */
    function toInt8(int256 value) internal pure returns (int8) {
        require(value >= type(int8).min && value <= type(int8).max, "SafeCast: value doesn't fit in 8 bits");
        return int8(value);
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     *
     * _Available since v3.0._
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
        return int256(value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.3) (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) {
        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.
            /// @solidity memory-safe-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 {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

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

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

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

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

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

        return (signer, RecoverError.NoError);
    }

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @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);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)

pragma solidity ^0.8.0;

import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
 *
 * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
 * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
 *
 * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
 * fee is specified in basis points by default.
 *
 * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
 * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
 * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
 *
 * _Available since v4.5._
 */
abstract contract ERC2981 is IERC2981, ERC165 {
    struct RoyaltyInfo {
        address receiver;
        uint96 royaltyFraction;
    }

    RoyaltyInfo private _defaultRoyaltyInfo;
    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @inheritdoc IERC2981
     */
    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];

        if (royalty.receiver == address(0)) {
            royalty = _defaultRoyaltyInfo;
        }

        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();

        return (royalty.receiver, royaltyAmount);
    }

    /**
     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
     * override.
     */
    function _feeDenominator() internal pure virtual returns (uint96) {
        return 10000;
    }

    /**
     * @dev Sets the royalty information that all ids in this contract will default to.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: invalid receiver");

        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Removes default royalty information.
     */
    function _deleteDefaultRoyalty() internal virtual {
        delete _defaultRoyaltyInfo;
    }

    /**
     * @dev Sets the royalty information for a specific token id, overriding the global default.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: Invalid parameters");

        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Resets royalty information for the token id back to the global default.
     */
    function _resetTokenRoyalty(uint256 tokenId) internal virtual {
        delete _tokenRoyaltyInfo[tokenId];
    }
}

// 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);
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.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));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        }
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

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

pragma solidity ^0.8.0;

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

// 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;
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';

/**
 * @dev Interface of an ERC721A compliant contract.
 */
interface IERC721A is IERC721, IERC721Metadata {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * The caller cannot approve to their own address.
     */
    error ApproveToCaller();

    /**
     * The caller cannot approve to the current owner.
     */
    error ApprovalToCurrentOwner();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

    // 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;
    }

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     * 
     * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
     */
    function totalSupply() external view returns (uint256);
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyClaimed","type":"error"},{"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":"IncorrectPayment","type":"error"},{"inputs":[],"name":"InvalidAddress","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[],"name":"InvalidTime","type":"error"},{"inputs":[],"name":"MintLimitExceeded","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"NotActive","type":"error"},{"inputs":[],"name":"OnlyEOA","type":"error"},{"inputs":[],"name":"OnlyTokenOwner","type":"error"},{"inputs":[],"name":"OutOfSupply","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"SignerNotSet","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"},{"inputs":[],"name":"ZeroBalance","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":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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":"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":"MINT_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PROJECT_D_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SUPPLY_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"Tether","outputs":[{"internalType":"contract ITether","name":"","type":"address"}],"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":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"claimD","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"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":"mintActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"mintOne","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mintSigner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"mintTwo","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"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":[],"name":"projectDActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"projectDBaseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"projectDCounter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"projectDId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"projectDPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"releasable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"releasable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"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":"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":"newUri","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"active","type":"bool"}],"name":"setMintActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newSigner","type":"address"}],"name":"setMintSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"active","type":"bool"}],"name":"setProjectDActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newUri","type":"string"}],"name":"setProjectDBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"name":"setProjectDPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint96","name":"value","type":"uint96"}],"name":"setRoyalties","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tetherAddress","type":"address"}],"name":"setTether","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"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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