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

pragma solidity >=0.8.0 <0.9.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

//
// Co-curate EthCC 
// Find more info on app.daolize.com/ethcc
// (starting from Sun 16th Jul 23)
//

contract Butterins is ERC721, Ownable {
    uint256 private _currentTokenId = 0;
    string private _inernalBaseURI;
    uint256 public maxSupply = 1000;

    constructor(string memory baseURI_) ERC721("Butterins", "BUTTERIN") {
        _inernalBaseURI = baseURI_;
    }

    function mint(address to) public {
        require(_currentTokenId < maxSupply, "Max supply reached");

        _mint(to, _currentTokenId);

        _currentTokenId++;
    }

    function setBaseURI(string memory baseURI_) public onlyOwner {
        _inernalBaseURI = baseURI_;
    }

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

    function _beforeTokenTransfer(address from, address to, uint256 tokenId, uint256 batchSize) internal override {
        require(to == address(0) || balanceOf(to) == 0, "Recipient already owns a token");
    }

    function numTokensMinted() external view returns(uint256) {
        return _currentTokenId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 v4.9.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

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

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

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        return owner;
    }

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

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

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        _requireMinted(tokenId);

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

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

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

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not token owner or approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");

        _transfer(from, to, tokenId);
    }

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
        _safeTransfer(from, to, tokenId, data);
    }

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

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

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

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

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

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

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

        _beforeTokenTransfer(address(0), to, tokenId, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

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

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

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

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

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

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

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

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

    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

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

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
     *
     * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
     * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
     * that `ownerOf(tokenId)` is `a`.
     */
    // solhint-disable-next-line func-name-mixedcase
    function __unsafe_increaseBalance(address account, uint256 amount) internal {
        _balances[account] += amount;
    }
}

// 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 (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.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 `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @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);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// 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 v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/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 (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) (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 v4.9.0) (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 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/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 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 256, 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 << 3) < value ? 1 : 0);
        }
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"baseURI_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"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":[{"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":"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":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"numTokensMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"baseURI_","type":"string"}],"name":"setBaseURI","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":[{"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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

0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003c68747470733a2f2f65746863632d6275746572696e732d646174612e73332e65752d776573742d312e616d617a6f6e6177732e636f6d2f6a736f6e2f00000000

-----Decoded View---------------
Arg [0] : baseURI_ (string): https://ethcc-buterins-data.s3.eu-west-1.amazonaws.com/json/

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 000000000000000000000000000000000000000000000000000000000000003c
Arg [2] : 68747470733a2f2f65746863632d6275746572696e732d646174612e73332e65
Arg [3] : 752d776573742d312e616d617a6f6e6177732e636f6d2f6a736f6e2f00000000