ETH Price: $3,359.28 (-0.68%)
Gas: 10 Gwei

Token

 

Overview

Max Total Supply

2,234

Holders

870

Market

Volume (24H)

N/A

Min Price (24H)

N/A

Max Price (24H)

N/A
0x2c3244f7761540e41859d9a446b489b08a85a058
Loading...
Loading
Loading...
Loading
Loading...
Loading

Click here to update the token information / general information
# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
frensAirdropper

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 11 : 1155-airdrop.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/access/Ownable.sol";


contract frensAirdropper is ERC1155, Ownable {
    using Strings for uint256;

    constructor(string memory _baseURI) ERC1155(_baseURI) {
        baseURI = _baseURI;
    }

    string private baseURI;

    function airdrop(address[] calldata addrs, uint256 _tokenID) external onlyOwner {
        for (uint256 i = 0; i < addrs.length; i++) {
            _mint(addrs[i], _tokenID, 1, "");
        }
    }
    function updateBaseUri(string memory _baseURI) external onlyOwner {
        baseURI = _baseURI;
    }

    function uri(uint256 typeId) public view override returns (string memory) {
        return
            bytes(baseURI).length > 0
                ? string(abi.encodePacked(baseURI, typeId.toString()))
                : baseURI;
    }
}

File 2 of 11 : ERC1155.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/ERC1155.sol)

pragma solidity ^0.8.0;

import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
    using Address for address;

    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;

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

    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;

    /**
     * @dev See {_setURI}.
     */
    constructor(string memory uri_) {
        _setURI(uri_);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC1155).interfaceId ||
            interfaceId == type(IERC1155MetadataURI).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\{id\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }

    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: balance query for the zero address");
        return _balances[id][account];
    }

    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");

        uint256[] memory batchBalances = new uint256[](accounts.length);

        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }

        return batchBalances;
    }

    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }

    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not owner nor approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }

    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: transfer caller is not owner nor approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;

        emit TransferSingle(operator, from, to, id, amount);

        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }

        emit TransferBatch(operator, from, to, ids, amounts);

        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }

    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\{id\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\{id\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }

    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data);

        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);

        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }

        emit TransferBatch(operator, address(0), to, ids, amounts);

        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }

    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }

        emit TransferSingle(operator, from, address(0), id, amount);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }

        emit TransferBatch(operator, from, address(0), ids, amounts);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155Receiver.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;

        return array;
    }
}

File 3 of 11 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

File 4 of 11 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 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 5 of 11 : IERC1155.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

File 6 of 11 : IERC1155Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
        @dev Handles the receipt of a single ERC1155 token type. This function is
        called at the end of a `safeTransferFrom` after the balance has been updated.
        To accept the transfer, this must return
        `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
        (i.e. 0xf23a6e61, or its own function selector).
        @param operator The address which initiated the transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param id The ID of the token being transferred
        @param value The amount of tokens being transferred
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
    */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
        @dev Handles the receipt of a multiple ERC1155 token types. This function
        is called at the end of a `safeBatchTransferFrom` after the balances have
        been updated. To accept the transfer(s), this must return
        `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
        (i.e. 0xbc197c81, or its own function selector).
        @param operator The address which initiated the batch transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param ids An array containing ids of each token being transferred (order and length must match values array)
        @param values An array containing amounts of each token being transferred (order and length must match ids array)
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
    */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

File 7 of 11 : IERC1155MetadataURI.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)

pragma solidity ^0.8.0;

import "../IERC1155.sol";

/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURI is IERC1155 {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\{id\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}

File 8 of 11 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

File 9 of 11 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

File 10 of 11 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

File 11 of 11 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

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

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

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","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":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"TransferBatch","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"TransferSingle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"value","type":"string"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"}],"name":"URI","type":"event"},{"inputs":[{"internalType":"address[]","name":"addrs","type":"address[]"},{"internalType":"uint256","name":"_tokenID","type":"uint256"}],"name":"airdrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"accounts","type":"address[]"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"}],"name":"balanceOfBatch","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","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":"ids","type":"uint256[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeBatchTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","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":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"name":"updateBaseUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"typeId","type":"uint256"}],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]

60806040523480156200001157600080fd5b5060405162001e4f38038062001e4f83398101604081905262000034916200017a565b80620000408162000069565b506200004c3362000082565b805162000061906004906020840190620000d4565b5050620002a9565b80516200007e906002906020840190620000d4565b5050565b600380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b828054620000e29062000256565b90600052602060002090601f01602090048101928262000106576000855562000151565b82601f106200012157805160ff191683800117855562000151565b8280016001018555821562000151579182015b828111156200015157825182559160200191906001019062000134565b506200015f92915062000163565b5090565b5b808211156200015f576000815560010162000164565b600060208083850312156200018e57600080fd5b82516001600160401b0380821115620001a657600080fd5b818501915085601f830112620001bb57600080fd5b815181811115620001d057620001d062000293565b604051601f8201601f19908116603f01168101908382118183101715620001fb57620001fb62000293565b8160405282815288868487010111156200021457600080fd5b600093505b8284101562000238578484018601518185018701529285019262000219565b828411156200024a5760008684830101525b98975050505050505050565b600181811c908216806200026b57607f821691505b602082108114156200028d57634e487b7160e01b600052602260045260246000fd5b50919050565b634e487b7160e01b600052604160045260246000fd5b611b9680620002b96000396000f3fe608060405234801561001057600080fd5b50600436106100ce5760003560e01c8063715018a61161008c578063c204642c11610066578063c204642c146101ba578063e985e9c5146101cd578063f242432a14610209578063f2fde38b1461021c57600080fd5b8063715018a6146101845780638da5cb5b1461018c578063a22cb465146101a757600080fd5b8062fdd58e146100d357806301ffc9a7146100f95780630e89341c1461011c5780632eb2c2d61461013c57806339f7e37f146101515780634e1273f414610164575b600080fd5b6100e66100e13660046113ec565b61022f565b6040519081526020015b60405180910390f35b61010c610107366004611562565b6102c6565b60405190151581526020016100f0565b61012f61012a3660046115e5565b610318565b6040516100f09190611803565b61014f61014a3660046112a1565b6103f1565b005b61014f61015f36600461159c565b610488565b610177610172366004611491565b6104c9565b6040516100f091906117cb565b61014f6105f3565b6003546040516001600160a01b0390911681526020016100f0565b61014f6101b53660046113b0565b610629565b61014f6101c8366004611416565b610634565b61010c6101db36600461126e565b6001600160a01b03918216600090815260016020908152604080832093909416825291909152205460ff1690565b61014f61021736600461134b565b6106c3565b61014f61022a366004611253565b61074a565b60006001600160a01b0383166102a05760405162461bcd60e51b815260206004820152602b60248201527f455243313135353a2062616c616e636520717565727920666f7220746865207a60448201526a65726f206164647265737360a81b60648201526084015b60405180910390fd5b506000908152602081815260408083206001600160a01b03949094168352929052205490565b60006001600160e01b03198216636cdb3d1360e11b14806102f757506001600160e01b031982166303a24d0760e21b145b8061031257506301ffc9a760e01b6001600160e01b03198316145b92915050565b6060600060048054610329906119b5565b9050116103c0576004805461033d906119b5565b80601f0160208091040260200160405190810160405280929190818152602001828054610369906119b5565b80156103b65780601f1061038b576101008083540402835291602001916103b6565b820191906000526020600020905b81548152906001019060200180831161039957829003601f168201915b5050505050610312565b60046103cb836107e5565b6040516020016103dc929190611681565b60405160208183030381529060405292915050565b6001600160a01b03851633148061040d575061040d85336101db565b6104745760405162461bcd60e51b815260206004820152603260248201527f455243313135353a207472616e736665722063616c6c6572206973206e6f74206044820152711bdddb995c881b9bdc88185c1c1c9bdd995960721b6064820152608401610297565b61048185858585856108eb565b5050505050565b6003546001600160a01b031633146104b25760405162461bcd60e51b8152600401610297906118ed565b80516104c59060049060208401906110a2565b5050565b6060815183511461052e5760405162461bcd60e51b815260206004820152602960248201527f455243313135353a206163636f756e747320616e6420696473206c656e677468604482015268040dad2e6dac2e8c6d60bb1b6064820152608401610297565b6000835167ffffffffffffffff81111561054a5761054a611a8e565b604051908082528060200260200182016040528015610573578160200160208202803683370190505b50905060005b84518110156105eb576105be85828151811061059757610597611a78565b60200260200101518583815181106105b1576105b1611a78565b602002602001015161022f565b8282815181106105d0576105d0611a78565b60209081029190910101526105e481611a1d565b9050610579565b509392505050565b6003546001600160a01b0316331461061d5760405162461bcd60e51b8152600401610297906118ed565b6106276000610ac8565b565b6104c5338383610b1a565b6003546001600160a01b0316331461065e5760405162461bcd60e51b8152600401610297906118ed565b60005b828110156106bd576106ab84848381811061067e5761067e611a78565b90506020020160208101906106939190611253565b83600160405180602001604052806000815250610bfb565b806106b581611a1d565b915050610661565b50505050565b6001600160a01b0385163314806106df57506106df85336101db565b61073d5760405162461bcd60e51b815260206004820152602960248201527f455243313135353a2063616c6c6572206973206e6f74206f776e6572206e6f7260448201526808185c1c1c9bdd995960ba1b6064820152608401610297565b6104818585858585610d05565b6003546001600160a01b031633146107745760405162461bcd60e51b8152600401610297906118ed565b6001600160a01b0381166107d95760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b6064820152608401610297565b6107e281610ac8565b50565b6060816108095750506040805180820190915260018152600360fc1b602082015290565b8160005b8115610833578061081d81611a1d565b915061082c9050600a8361195e565b915061080d565b60008167ffffffffffffffff81111561084e5761084e611a8e565b6040519080825280601f01601f191660200182016040528015610878576020820181803683370190505b5090505b84156108e35761088d600183611972565b915061089a600a86611a38565b6108a5906030611946565b60f81b8183815181106108ba576108ba611a78565b60200101906001600160f81b031916908160001a9053506108dc600a8661195e565b945061087c565b949350505050565b815183511461094d5760405162461bcd60e51b815260206004820152602860248201527f455243313135353a2069647320616e6420616d6f756e7473206c656e677468206044820152670dad2e6dac2e8c6d60c31b6064820152608401610297565b6001600160a01b0384166109735760405162461bcd60e51b81526004016102979061185e565b3360005b8451811015610a5a57600085828151811061099457610994611a78565b6020026020010151905060008583815181106109b2576109b2611a78565b602090810291909101810151600084815280835260408082206001600160a01b038e168352909352919091205490915081811015610a025760405162461bcd60e51b8152600401610297906118a3565b6000838152602081815260408083206001600160a01b038e8116855292528083208585039055908b16825281208054849290610a3f908490611946565b9250508190555050505080610a5390611a1d565b9050610977565b50846001600160a01b0316866001600160a01b0316826001600160a01b03167f4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb8787604051610aaa9291906117de565b60405180910390a4610ac0818787878787610e22565b505050505050565b600380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b816001600160a01b0316836001600160a01b03161415610b8e5760405162461bcd60e51b815260206004820152602960248201527f455243313135353a2073657474696e6720617070726f76616c20737461747573604482015268103337b91039b2b63360b91b6064820152608401610297565b6001600160a01b03838116600081815260016020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b6001600160a01b038416610c5b5760405162461bcd60e51b815260206004820152602160248201527f455243313135353a206d696e7420746f20746865207a65726f206164647265736044820152607360f81b6064820152608401610297565b33610c7581600087610c6c88610f8d565b61048188610f8d565b6000848152602081815260408083206001600160a01b038916845290915281208054859290610ca5908490611946565b909155505060408051858152602081018590526001600160a01b0380881692600092918516917fc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62910160405180910390a461048181600087878787610fd8565b6001600160a01b038416610d2b5760405162461bcd60e51b81526004016102979061185e565b33610d3b818787610c6c88610f8d565b6000848152602081815260408083206001600160a01b038a16845290915290205483811015610d7c5760405162461bcd60e51b8152600401610297906118a3565b6000858152602081815260408083206001600160a01b038b8116855292528083208785039055908816825281208054869290610db9908490611946565b909155505060408051868152602081018690526001600160a01b03808916928a821692918616917fc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62910160405180910390a4610e19828888888888610fd8565b50505050505050565b6001600160a01b0384163b15610ac05760405163bc197c8160e01b81526001600160a01b0385169063bc197c8190610e669089908990889088908890600401611728565b602060405180830381600087803b158015610e8057600080fd5b505af1925050508015610eb0575060408051601f3d908101601f19168201909252610ead9181019061157f565b60015b610f5d57610ebc611aa4565b806308c379a01415610ef65750610ed1611ac0565b80610edc5750610ef8565b8060405162461bcd60e51b81526004016102979190611803565b505b60405162461bcd60e51b815260206004820152603460248201527f455243313135353a207472616e7366657220746f206e6f6e20455243313135356044820152732932b1b2b4bb32b91034b6b83632b6b2b73a32b960611b6064820152608401610297565b6001600160e01b0319811663bc197c8160e01b14610e195760405162461bcd60e51b815260040161029790611816565b60408051600180825281830190925260609160009190602080830190803683370190505090508281600081518110610fc757610fc7611a78565b602090810291909101015292915050565b6001600160a01b0384163b15610ac05760405163f23a6e6160e01b81526001600160a01b0385169063f23a6e619061101c9089908990889088908890600401611786565b602060405180830381600087803b15801561103657600080fd5b505af1925050508015611066575060408051601f3d908101601f191682019092526110639181019061157f565b60015b61107257610ebc611aa4565b6001600160e01b0319811663f23a6e6160e01b14610e195760405162461bcd60e51b815260040161029790611816565b8280546110ae906119b5565b90600052602060002090601f0160209004810192826110d05760008555611116565b82601f106110e957805160ff1916838001178555611116565b82800160010185558215611116579182015b828111156111165782518255916020019190600101906110fb565b50611122929150611126565b5090565b5b808211156111225760008155600101611127565b600067ffffffffffffffff83111561115557611155611a8e565b60405161116c601f8501601f1916602001826119f0565b80915083815284848401111561118157600080fd5b83836020830137600060208583010152509392505050565b80356001600160a01b03811681146111b057600080fd5b919050565b600082601f8301126111c657600080fd5b813560206111d382611922565b6040516111e082826119f0565b8381528281019150858301600585901b8701840188101561120057600080fd5b60005b8581101561121f57813584529284019290840190600101611203565b5090979650505050505050565b600082601f83011261123d57600080fd5b61124c8383356020850161113b565b9392505050565b60006020828403121561126557600080fd5b61124c82611199565b6000806040838503121561128157600080fd5b61128a83611199565b915061129860208401611199565b90509250929050565b600080600080600060a086880312156112b957600080fd5b6112c286611199565b94506112d060208701611199565b9350604086013567ffffffffffffffff808211156112ed57600080fd5b6112f989838a016111b5565b9450606088013591508082111561130f57600080fd5b61131b89838a016111b5565b9350608088013591508082111561133157600080fd5b5061133e8882890161122c565b9150509295509295909350565b600080600080600060a0868803121561136357600080fd5b61136c86611199565b945061137a60208701611199565b93506040860135925060608601359150608086013567ffffffffffffffff8111156113a457600080fd5b61133e8882890161122c565b600080604083850312156113c357600080fd5b6113cc83611199565b9150602083013580151581146113e157600080fd5b809150509250929050565b600080604083850312156113ff57600080fd5b61140883611199565b946020939093013593505050565b60008060006040848603121561142b57600080fd5b833567ffffffffffffffff8082111561144357600080fd5b818601915086601f83011261145757600080fd5b81358181111561146657600080fd5b8760208260051b850101111561147b57600080fd5b6020928301989097509590910135949350505050565b600080604083850312156114a457600080fd5b823567ffffffffffffffff808211156114bc57600080fd5b818501915085601f8301126114d057600080fd5b813560206114dd82611922565b6040516114ea82826119f0565b8381528281019150858301600585901b870184018b101561150a57600080fd5b600096505b848710156115345761152081611199565b83526001969096019591830191830161150f565b509650508601359250508082111561154b57600080fd5b50611558858286016111b5565b9150509250929050565b60006020828403121561157457600080fd5b813561124c81611b4a565b60006020828403121561159157600080fd5b815161124c81611b4a565b6000602082840312156115ae57600080fd5b813567ffffffffffffffff8111156115c557600080fd5b8201601f810184136115d657600080fd5b6108e38482356020840161113b565b6000602082840312156115f757600080fd5b5035919050565b600081518084526020808501945080840160005b8381101561162e57815187529582019590820190600101611612565b509495945050505050565b60008151808452611651816020860160208601611989565b601f01601f19169290920160200192915050565b60008151611677818560208601611989565b9290920192915050565b600080845481600182811c91508083168061169d57607f831692505b60208084108214156116bd57634e487b7160e01b86526022600452602486fd5b8180156116d157600181146116e25761170f565b60ff1986168952848901965061170f565b60008b81526020902060005b868110156117075781548b8201529085019083016116ee565b505084890196505b50505050505061171f8185611665565b95945050505050565b6001600160a01b0386811682528516602082015260a060408201819052600090611754908301866115fe565b828103606084015261176681866115fe565b9050828103608084015261177a8185611639565b98975050505050505050565b6001600160a01b03868116825285166020820152604081018490526060810183905260a0608082018190526000906117c090830184611639565b979650505050505050565b60208152600061124c60208301846115fe565b6040815260006117f160408301856115fe565b828103602084015261171f81856115fe565b60208152600061124c6020830184611639565b60208082526028908201527f455243313135353a204552433131353552656365697665722072656a656374656040820152676420746f6b656e7360c01b606082015260800190565b60208082526025908201527f455243313135353a207472616e7366657220746f20746865207a65726f206164604082015264647265737360d81b606082015260800190565b6020808252602a908201527f455243313135353a20696e73756666696369656e742062616c616e636520666f60408201526939103a3930b739b332b960b11b606082015260800190565b6020808252818101527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604082015260600190565b600067ffffffffffffffff82111561193c5761193c611a8e565b5060051b60200190565b6000821982111561195957611959611a4c565b500190565b60008261196d5761196d611a62565b500490565b60008282101561198457611984611a4c565b500390565b60005b838110156119a457818101518382015260200161198c565b838111156106bd5750506000910152565b600181811c908216806119c957607f821691505b602082108114156119ea57634e487b7160e01b600052602260045260246000fd5b50919050565b601f8201601f1916810167ffffffffffffffff81118282101715611a1657611a16611a8e565b6040525050565b6000600019821415611a3157611a31611a4c565b5060010190565b600082611a4757611a47611a62565b500690565b634e487b7160e01b600052601160045260246000fd5b634e487b7160e01b600052601260045260246000fd5b634e487b7160e01b600052603260045260246000fd5b634e487b7160e01b600052604160045260246000fd5b600060033d1115611abd5760046000803e5060005160e01c5b90565b600060443d1015611ace5790565b6040516003193d81016004833e81513d67ffffffffffffffff8160248401118184111715611afe57505050505090565b8285019150815181811115611b165750505050505090565b843d8701016020828501011115611b305750505050505090565b611b3f602082860101876119f0565b509095945050505050565b6001600160e01b0319811681146107e257600080fdfea26469706673582212202d0e402643b52985e7d6e493f5af8033f82a3f50ea86b8d66c766519e80e080764736f6c634300080700330000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000005668747470733a2f2f616c69656e6672656e732e6d7970696e6174612e636c6f75642f697066732f516d615354727164757a4555695a6a52724e394a6f7a506a555958446f48757466783362445a6a5276723262344a2f00000000000000000000

Deployed Bytecode

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

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

0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000005668747470733a2f2f616c69656e6672656e732e6d7970696e6174612e636c6f75642f697066732f516d615354727164757a4555695a6a52724e394a6f7a506a555958446f48757466783362445a6a5276723262344a2f00000000000000000000

-----Decoded View---------------
Arg [0] : _baseURI (string): https://alienfrens.mypinata.cloud/ipfs/QmaSTrqduzEUiZjRrN9JozPjUYXDoHutfx3bDZjRvr2b4J/

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000056
Arg [2] : 68747470733a2f2f616c69656e6672656e732e6d7970696e6174612e636c6f75
Arg [3] : 642f697066732f516d615354727164757a4555695a6a52724e394a6f7a506a55
Arg [4] : 5958446f48757466783362445a6a5276723262344a2f00000000000000000000


Loading...
Loading
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.