Token

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: MIT

// Deploy and contract customizations by: Artur Chmaro
// ERC721A creator: Chiru Labs

pragma solidity ^0.8.13;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';
import "@openzeppelin/contracts/access/Ownable.sol";
import "operator-filter-registry/src/DefaultOperatorFilterer.sol";

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract HeyEduGenesisV2 is Context, ERC165, IERC721, IERC721Metadata, Ownable, DefaultOperatorFilterer {
    using Address for address;
    using Strings for uint256;

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

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

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    string private _base_uri = "ipfs://bafybeido3dkspmhkyxgtxd7prmme7gqikkarliy6kabjvjgx5lbgkaiqkm/";

    // 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) public _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;

    // Flag that indicates if mint still possible
    bool public mintPaused;

    // returns contract metadata
    string private _contractURI;

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

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 1;
    }

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

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

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

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        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 && 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(), ".json")) : '';
    }

    /**
     * @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 _base_uri;
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override onlyAllowedOperatorApproval(to) {
        address owner = HeyEduGenesisV2.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

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

        _approve(to, tokenId, owner);
    }

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

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override onlyAllowedOperatorApproval(operator) {
        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 onlyAllowedOperator(from) {
        _transfer(from, to, tokenId);
    }

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        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 This is 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 {}

    function batchAddToWhitelist(
      address [] calldata recipients,
      uint64 [] calldata quantities
    ) public onlyOwner {
      for(uint64 i = 0; i < recipients.length; i++) {
        _addressData[recipients[i]].aux = quantities[i];
      }
    }

    function changeBaseUri(
      string calldata newBaseUri
    ) public onlyOwner {
        _base_uri = newBaseUri;
    }

    function mint(uint64 amount) public {
      require(amount > 0, "amount must be higher than zero");
      require(mintPaused == false, "mint paused");
      require(_addressData[msg.sender].aux >= amount, "caller not whitelisted");
      _addressData[msg.sender].aux = _addressData[msg.sender].aux - amount;
      _safeMint(msg.sender, amount);
    }

    function batchMint(address [] calldata _recipients) public {
      require(mintPaused == false, "mint paused");
      require(_addressData[msg.sender].aux >= _recipients.length, "caller not whitelisted for enough copies");

      for(uint i = 0; i < _recipients.length; i++) {
        _addressData[msg.sender].aux = _addressData[msg.sender].aux - 1;
        _safeMint(_recipients[i], 1);
      }
    }

    function setMintPaused(
      bool _flag
    ) public onlyOwner {
        mintPaused = _flag;
    }

    function setContractURI(
      string memory _uri
    ) public onlyOwner {
        _contractURI = _uri;
    }

    function contractURI() public view returns (string memory) {
        return _contractURI;
    }
}

// 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 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 v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

// 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 (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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 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 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
// 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 (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _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) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @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] = _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
pragma solidity ^0.8.13;

import {OperatorFilterer} from "./OperatorFilterer.sol";
import {CANONICAL_CORI_SUBSCRIPTION} from "./lib/Constants.sol";
/**
 * @title  DefaultOperatorFilterer
 * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.
 * @dev    Please note that if your token contract does not provide an owner with EIP-173, it must provide
 *         administration methods on the contract itself to interact with the registry otherwise the subscription
 *         will be locked to the options set during construction.
 */

abstract contract DefaultOperatorFilterer is OperatorFilterer {
    /// @dev The constructor that is called when the contract is being deployed.
    constructor() OperatorFilterer(CANONICAL_CORI_SUBSCRIPTION, true) {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol";
import {CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS} from "./lib/Constants.sol";
/**
 * @title  OperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 *         Please note that if your token contract does not provide an owner with EIP-173, it must provide
 *         administration methods on the contract itself to interact with the registry otherwise the subscription
 *         will be locked to the options set during construction.
 */

abstract contract OperatorFilterer {
    /// @dev Emitted when an operator is not allowed.
    error OperatorNotAllowed(address operator);

    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =
        IOperatorFilterRegistry(CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS);

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

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

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

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

{
  "optimizer": {
    "enabled": true,
    "runs": 400
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"OPERATOR_FILTER_REGISTRY","outputs":[{"internalType":"contract IOperatorFilterRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_addressData","outputs":[{"internalType":"uint64","name":"balance","type":"uint64"},{"internalType":"uint64","name":"numberMinted","type":"uint64"},{"internalType":"uint64","name":"numberBurned","type":"uint64"},{"internalType":"uint64","name":"aux","type":"uint64"}],"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":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint64[]","name":"quantities","type":"uint64[]"}],"name":"batchAddToWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_recipients","type":"address[]"}],"name":"batchMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseUri","type":"string"}],"name":"changeBaseUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"amount","type":"uint64"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mintPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_flag","type":"bool"}],"name":"setMintPaused","outputs":[],"stateMutability":"nonpayable","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":[],"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"}]

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

00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000e4865794564752047656e65736973000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e4865794564752047656e65736973000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : name_ (string): HeyEdu Genesis
Arg [1] : symbol_ (string): HeyEdu Genesis

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 000000000000000000000000000000000000000000000000000000000000000e
Arg [3] : 4865794564752047656e65736973000000000000000000000000000000000000
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000e
Arg [5] : 4865794564752047656e65736973000000000000000000000000000000000000