Contract 0x9121c7f5976692bc7F97Cd380d19a7A7e1d0E0F5 3

 
 
Txn Hash
Method
Block
From
To
Value
0x91e3fca6fb2dbf411d05ff65324b3aeaaaa8d582ca52fab3b8cf58fde8b3ecc4Set Approval For...160511622022-11-26 2:25:351 day 14 mins ago0xcc476401b3b953cab0b28f98aed114183fcfb1f4 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00046133 10.00676048
0x122de14e7d3b6f54ffc0869e489384ef10d264c296ef14ab73fbb1afffdbce37Set Approval For...160505712022-11-26 0:26:471 day 2 hrs agoENS Name elementxfi.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00046155 9.993289
0xa9c71f23c8cb2f8d673b2393df27c13a8e83ebabc9e91468194b20ede2d01d6dSet Approval For...160498602022-11-25 22:03:591 day 4 hrs ago0x92dcbd57d2e2c9e9d1ffc0e26e171364488f3bc6 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00050672 10.97129343
0x47d2acd6a24b1325595688b5768e23f796a862dbe5e08fcea0dc0410f2ed9e91Set Approval For...160498472022-11-25 22:01:231 day 4 hrs ago0x64ba59e8e058318ee191cf09404ff534d357bb13 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00029188 11.10414676
0x001a89c2ab8991dfc99183d5e79860d10641303c05351f3af2d5bd9a1440d1a7Set Approval For...160495672022-11-25 21:05:111 day 5 hrs ago0x64ba59e8e058318ee191cf09404ff534d357bb13 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00054879 11.88231035
0xef9bd438faabb412142e230eadeec70c29c47df6b6733ee8d546b21507dce8d7Set Approval For...160434862022-11-25 0:41:112 days 1 hr ago0xbd703053d78e289a160850809c54d33c4e238d17 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00055406 12.01830846
0x48353d222fb12305b8cbe07e04657a1930e1eb1f40286dee2750f58da3367180Set Approval For...160424002022-11-24 21:03:112 days 5 hrs ago0x7d5af957ad1d3bd707cd246264bae8e458afd879 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00026923 11.09168235
0x9c4a7436bb5e5cb8201c43c5f4edf0a0b5ae9c0c94242d48cfe8fa5e23afecc4Set Approval For...160423372022-11-24 20:50:352 days 5 hrs ago0x7d5af957ad1d3bd707cd246264bae8e458afd879 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00028885 10.98889879
0x696716e02d0cb2473f6538650427969b463c0e1613bd841e998af55588efce59Set Approval For...160423312022-11-24 20:49:232 days 5 hrs ago0x7d5af957ad1d3bd707cd246264bae8e458afd879 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00029555 11.24391801
0xb1fa67e9530209554489dc06a42458a5cd67d6a813b7d15277ecd122712b3f86Set Approval For...160423232022-11-24 20:47:472 days 5 hrs ago0x7d5af957ad1d3bd707cd246264bae8e458afd879 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00048343 10.46718148
0xdebf8887d7e088b2c0fee270e366022f118d50e8ad1d1501fdd195dcdb093159Set Approval For...160409282022-11-24 16:07:232 days 10 hrs agoENS Name prettyugly.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00088391 19.13814781
0x8887efb43c7bedb666a455cbe5c8044908d241aa9fc2a3fe7d06e2938c391c5aSet Approval For...160408792022-11-24 15:57:352 days 10 hrs agoENS Name kronickatz.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00033603 12.78377255
0x6af7d47cfb65d04aee15c045ac7f455313defddd0210af6364bbf34009943977Safe Transfer Fr...160361802022-11-24 0:13:113 days 2 hrs agoENS Name cohibaman.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00061992 11.94024825
0xf21bedb536d6e935210c807b6e5306b6e6763374806563a1e6e66ddaf0719aa3Safe Transfer Fr...160361632022-11-24 0:09:473 days 2 hrs ago0x64ba59e8e058318ee191cf09404ff534d357bb13 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00116093 12.02805085
0x146d52b81b8ca61c54fa3e56d379137be59c0224ce1bf8896e74670509fb8426Safe Transfer Fr...160303642022-11-23 4:38:473 days 22 hrs agoENS Name cohibaman.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00066482 12.80512108
0x0b527918a0ad782d3f5262722b7550235210ddfc819210f156000946558e5404Set Approval For...160285622022-11-22 22:36:354 days 4 hrs agoENS Name kronickatz.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00034487 13.12024292
0x60b1bb2d54dac16fc8b6ceed0e37dbb930fed7342f360b55b6a3dcb60ef9baffSet Approval For...160271062022-11-22 17:43:114 days 8 hrs agoENS Name kronickatz.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00070136 26.68208738
0xc024872f4219445ce8db9499f982cdac29f95a89f9d6f2444b1f19e337f2329fSet Approval For...160242172022-11-22 7:59:474 days 18 hrs agoENS Name kronickatz.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00051112 11.06666565
0x2aa0c008b20b2634f7a480547686d4aca0f39a349668b270872a33ef2f41bcc9Safe Transfer Fr...160240712022-11-22 7:30:354 days 19 hrs ago0xe4cfa0bf81c5c4c667543db58ee3c85093f766f6 IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00083844 12.14798156
0x7ea8fe56f0a3ac0850de1fb809c502a7d9f1ae14213c19109e5970d127c44b29Safe Transfer Fr...160233442022-11-22 5:04:474 days 21 hrs ago0x70d4c5ec42c9d72984ebd389c5d9e5e5588df31a IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00075423 10.92800279
0x24533b79954199e3e73ee1861af6b71551da54a83dfd780866f6f6bd245ae297Safe Transfer Fr...160211082022-11-21 21:35:235 days 5 hrs agoENS Name theguccigoblin.eth IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00069883 10.88198273
0x593174b5ebcdf40e7f56af9d5bcf45b7960851b725c4e6c2499293f92b6cd3baSet Approval For...160196372022-11-21 16:39:235 days 10 hrs ago0x289e0514655ee4bf90946001afa7c9168748b40b IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00088621 19.22291108
0x7f202d180ddc555fbd7f54852f56ad154589442094ff9cb8f6368dc41fe94ad0Set Approval For...160189212022-11-21 14:15:355 days 12 hrs ago0x114c5391dcb464446f8065e7911040926ed69e8f IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00060067 13.02932299
0xe328fceaaf4e8a6b60d81ec74248c787cb9274b7ec3e4e0fb22963e1f9315dedSet Approval For...160189202022-11-21 14:15:235 days 12 hrs ago0x114c5391dcb464446f8065e7911040926ed69e8f IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00061212 13.27069732
0x64aceeb20601fdeedae8fd54d509ff6d6ad180af1385ad2540337de195e15edcSet Approval For...160183982022-11-21 12:30:235 days 14 hrs ago0x2718f35e4d0c2343463b1c44d93efad4c82b602c IN  0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50 Ether0.00058067 12.59534314
[ Download CSV Export 
Latest 3 internal transactions
Parent Txn Hash Block From To Value
0xd14a215241a3ced28828c005651d024a913d5fe49c1d49279311312ffebb1ad5156168272022-09-26 10:03:1161 days 16 hrs ago 0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50xec1043f2e2b1725a61c8a362477ea622db40d6398.7318 Ether
0xd14a215241a3ced28828c005651d024a913d5fe49c1d49279311312ffebb1ad5156168272022-09-26 10:03:1161 days 16 hrs ago 0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f50xd0229e134f5bcab036b5e09a82bfb522cdf25ccb0.4851 Ether
0xd14a215241a3ced28828c005651d024a913d5fe49c1d49279311312ffebb1ad5156168272022-09-26 10:03:1161 days 16 hrs ago 0x9121c7f5976692bc7f97cd380d19a7a7e1d0e0f5 0x985afca097414e5510c2c4faebdb287e4f237a1b0.4851 Ether
[ Download CSV Export 
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
Umyc

Compiler Version
v0.8.13+commit.abaa5c0e

Optimization Enabled:
Yes with 500 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2022-09-23
*/

// SPDX-License-Identifier: MIT

// File @openzeppelin/contracts/utils/introspection/[email protected]


// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// File @openzeppelin/contracts/token/ERC721/[email protected]


// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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


// File @openzeppelin/contracts/token/ERC721/[email protected]


// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

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


// File @openzeppelin/contracts/token/ERC721/extensions/[email protected]


// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}


// File @openzeppelin/contracts/utils/[email protected]


// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


// File @openzeppelin/contracts/utils/[email protected]


// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}


// File @openzeppelin/contracts/utils/[email protected]


// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}


// File @openzeppelin/contracts/utils/introspection/[email protected]


// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}


// File erc721a/contracts/[email protected]


// Creator: Chiru Labs

pragma solidity ^0.8.4;

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 ERC721A is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

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

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

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

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

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

    /**
     * @dev 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())) : '';
    }

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

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

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

        _approve(to, tokenId, owner);
    }

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

        return _tokenApprovals[tokenId];
    }

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

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

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

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

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

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


// File @openzeppelin/contracts/access/[email protected]


// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

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

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


// File @openzeppelin/contracts/interfaces/[email protected]


// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)

pragma solidity ^0.8.0;


// File @openzeppelin/contracts/interfaces/[email protected]


// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

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


// File @openzeppelin/contracts/token/common/[email protected]


// OpenZeppelin Contracts (last updated v4.5.0) (token/common/ERC2981.sol)

pragma solidity ^0.8.0;


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

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

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

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

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

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

        return (royalty.receiver, royaltyAmount);
    }

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

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

        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
    }

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

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

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

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

/******************************************************************************
    Smart contract generated on https://bueno.art

    Bueno is a suite of tools that allow artists to create generative art, 
    deploy smart contracts, and more -- all with no code.

    Bueno is not associated or affiliated with this project.
    Bueno is not liable for any bugs or minting issues associated with this contract.
/******************************************************************************/

pragma solidity ^0.8.7;

error SaleInactive();
error SoldOut();
error InvalidPrice();
error WithdrawFailed();
error InvalidQuantity();

contract Umyc is ERC721A, Ownable, ERC2981 {
    uint256 public price = 0.001 ether;
    uint256 public maxPerWallet = 3;
    uint256 public maxPerTransaction = 3;

    uint256 public immutable supply = 10000;

    enum SaleState {
        CLOSED,
        OPEN
    }

    SaleState public saleState = SaleState.CLOSED;

    string public _baseTokenURI;

    mapping(address => uint256) public addressMintBalance;

    address[] public withdrawAddresses = [0x985AFcA097414E5510c2C4faEbDb287E4F237A1B, 0xD0229e134F5BcAb036B5e09A82bFb522CDf25cCB, 0xec1043f2e2B1725A61c8A362477EA622dB40d639];
    uint256[] public withdrawPercentages = [5, 5, 90];

    constructor(
        string memory _name,
        string memory _symbol,
        string memory _baseUri,
        uint96 _royaltyAmount
    ) ERC721A(_name, _symbol) {
        _baseTokenURI = _baseUri;
        _setDefaultRoyalty(0xec1043f2e2B1725A61c8A362477EA622dB40d639, _royaltyAmount);
    }

    function mint(uint256 qty) external payable {
        if (saleState != SaleState.OPEN) revert SaleInactive();
        if (_currentIndex + (qty - 1) > supply) revert SoldOut();
        if (msg.value != price * qty) revert InvalidPrice();

        if (addressMintBalance[msg.sender] + qty > maxPerWallet) revert InvalidQuantity();
        if (qty > maxPerTransaction) revert InvalidQuantity();
        addressMintBalance[msg.sender] += qty;

        _safeMint(msg.sender, qty);

    }

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

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

    function burn(uint256 tokenId) public virtual {
        _burn(tokenId, true);
    }

    function setBaseURI(string memory baseURI) external onlyOwner {
        _baseTokenURI = baseURI;
    }

    function setPrice(uint256 newPrice) external onlyOwner {
        price = newPrice;
    }

    function setSaleState(uint8 _state) external onlyOwner {
        saleState = SaleState(_state);
    }

    function freeMint(uint256 qty, address recipient) external onlyOwner {
        if (_currentIndex + (qty - 1) > supply) revert SoldOut();
        _safeMint(recipient, qty);
    }

    function setPerWalletMax(uint256 _val) external onlyOwner {
        maxPerWallet = _val;
    }

    function setPerTransactionMax(uint256 _val) external onlyOwner {
        maxPerTransaction = _val;
    }

    function _withdraw(address _address, uint256 _amount) private {
        (bool success, ) = _address.call{value: _amount}("");
        if (!success) revert WithdrawFailed();
    }

    function withdraw() external onlyOwner {
        uint256 balance = address(this).balance;

        for (uint256 i; i < withdrawAddresses.length; i++) {
            _withdraw(withdrawAddresses[i], (balance * withdrawPercentages[i]) / 100);
        }
    }

    function setRoyaltyInfo(address receiver, uint96 feeBasisPoints)
        external
        onlyOwner
    {
        _setDefaultRoyalty(receiver, feeBasisPoints);
    }

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

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"string","name":"_baseUri","type":"string"},{"internalType":"uint96","name":"_royaltyAmount","type":"uint96"}],"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":"InvalidPrice","type":"error"},{"inputs":[],"name":"InvalidQuantity","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"SaleInactive","type":"error"},{"inputs":[],"name":"SoldOut","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"WithdrawFailed","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":"_baseTokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"addressMintBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"qty","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"freeMint","outputs":[],"stateMutability":"nonpayable","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":"maxPerTransaction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"qty","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"saleState","outputs":[{"internalType":"enum Umyc.SaleState","name":"","type":"uint8"}],"stateMutability":"view","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":"uint256","name":"_val","type":"uint256"}],"name":"setPerTransactionMax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_val","type":"uint256"}],"name":"setPerWalletMax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newPrice","type":"uint256"}],"name":"setPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint96","name":"feeBasisPoints","type":"uint96"}],"name":"setRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"_state","type":"uint8"}],"name":"setSaleState","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"supply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"withdrawAddresses","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"withdrawPercentages","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002bc0000000000000000000000000000000000000000000000000000000000000004554d5943000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004554d594300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004a68747470733a2f2f6e66742e6275656e6f2e6172742f6170692f636f6e74726163742f4164666a376d47356167564f364b65507a497974722f636861696e2f312f6d657461646174612f00000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): UMYC
Arg [1] : _symbol (string): UMYC
Arg [2] : _baseUri (string): https://nft.bueno.art/api/contract/Adfj7mG5agVO6KePzIytr/chain/1/metadata/
Arg [3] : _royaltyAmount (uint96): 700

-----Encoded View---------------
12 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [3] : 00000000000000000000000000000000000000000000000000000000000002bc
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [5] : 554d594300000000000000000000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [7] : 554d594300000000000000000000000000000000000000000000000000000000
Arg [8] : 000000000000000000000000000000000000000000000000000000000000004a
Arg [9] : 68747470733a2f2f6e66742e6275656e6f2e6172742f6170692f636f6e747261
Arg [10] : 63742f4164666a376d47356167564f364b65507a497974722f636861696e2f31
Arg [11] : 2f6d657461646174612f00000000000000000000000000000000000000000000


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

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.