Address Contract Partially Verified
Address
0x1687d6c8b66a3ba2C0dfA08067fBa2CAFD6D370f
Balance
0 ETH
Nonce
2
Code Size
6132 bytes
Creator
0x93D21F77...DA0F at tx 0xc43ac907...3e68bc
Indexed Transactions
0
Contract Bytecode
6132 bytes
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Verified Source Code Partial Match
Compiler: v0.8.23+commit.f704f362
EVM: shanghai
Optimization: Yes (200 runs)
smurfcatNFT.sol 305 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
interface Receiver {
function onERC721Received(address _operator, address _from, uint256 _tokenId, bytes calldata _data) external returns (bytes4);
}
contract Metadata {
string public name = "Descendants of Smurfcat";
string public symbol = "DoS";
string public baseURI = "https://arweave.net/-mckyPjOnwlkTN19bGRRkqhl6Y-OqLDy3mBjv9ssV_c/";
address public owner;
constructor() {
owner = tx.origin;
}
function setBaseURI(string memory _baseURI) external {
require(msg.sender == owner);
baseURI = _baseURI;
}
function tokenURI(uint256 _tokenId) external view returns (string memory) {
return string(abi.encodePacked(baseURI, _uint2str(_tokenId), ".json"));
}
function _uint2str(uint256 _value) internal pure returns (string memory) {
uint256 _digits = 1;
uint256 _n = _value;
while (_n > 9) {
_n /= 10;
_digits++;
}
bytes memory _out = new bytes(_digits);
for (uint256 i = 0; i < _out.length; i++) {
uint256 _dec = (_value / (10**(_out.length - i - 1))) % 10;
_out[i] = bytes1(uint8(_dec) + 48);
}
return string(_out);
}
}
contract smurfcatNFT {
uint256 constant public MAX_SUPPLY = 3333;
uint256 constant public MINT_COST = 0.01 ether;
uint256 constant private PAID_SUPPLY = 300;
uint256 constant private DEV_TOKENS = 33;
uint256 constant private OPEN_MINT_DELAY = 12 hours;
bytes32 constant private FREE_MERKLE_ROOT = 0x97065a5c49b1664430261a060b4d4e90253022606b49142c350dc95a2cf86958;
bytes32 constant private PAID_MERKLE_ROOT = 0x943cd45d71c324d5ade31d70c06a95a2c6d32447b01934157edd060721453f4c;
struct User {
bool freeMinted;
bool paidMinted;
uint240 balance;
mapping(address => bool) approved;
}
struct Token {
address owner;
address approved;
}
struct Info {
uint128 totalSupply;
uint128 paidSupply;
mapping(uint256 => Token) list;
mapping(address => User) users;
Metadata metadata;
address owner;
uint256 startTime;
}
Info private info;
mapping(bytes4 => bool) public supportsInterface;
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
event Mint(address indexed owner, uint256 indexed tokenId);
event FreeClaim(address indexed account, uint256 tokens);
event PaidClaim(address indexed account);
event BatchMetadataUpdate(uint256 from, uint256 to);
modifier _onlyOwner() {
require(msg.sender == owner());
_;
}
constructor() {
info.metadata = new Metadata();
info.owner = msg.sender;
info.startTime = block.timestamp;
supportsInterface[0x01ffc9a7] = true; // ERC-165
supportsInterface[0x80ac58cd] = true; // ERC-721
supportsInterface[0x5b5e139f] = true; // Metadata
for (uint256 i = 0; i < DEV_TOKENS; i++) {
_mint(owner());
}
}
function setOwner(address _owner) external _onlyOwner {
info.owner = _owner;
}
function setMetadata(Metadata _metadata) external _onlyOwner {
info.metadata = _metadata;
}
function ownerWithdraw() external _onlyOwner {
uint256 _balance = address(this).balance;
require(_balance > 0);
payable(msg.sender).transfer(_balance);
}
function forceUpdateAllMetadata() external _onlyOwner {
emit BatchMetadataUpdate(0, type(uint256).max);
}
receive() external payable {
mintMany(msg.value / MINT_COST);
}
function mint() external payable {
mintMany(1);
}
function mintMany(uint256 _tokens) public payable {
require(openMintEnabled());
require(_tokens > 0);
uint256 _cost = _tokens * MINT_COST;
require(msg.value >= _cost);
for (uint256 i = 0; i < _tokens; i++) {
_mint(msg.sender);
}
if (msg.value > _cost) {
payable(msg.sender).transfer(msg.value - _cost);
}
}
function mint(address _account, bytes32[] calldata _proof) external payable {
require(msg.value == MINT_COST);
require(!hasPaidMinted(_account));
require(_verify(_proof, keccak256(abi.encodePacked(_account)), PAID_MERKLE_ROOT));
info.paidSupply++;
require(paidSupply() <= PAID_SUPPLY);
info.users[_account].paidMinted = true;
_mint(_account);
emit PaidClaim(_account);
}
function claim(address _account, uint256 _tokens, bytes32[] calldata _proof) external {
require(!hasFreeMinted(_account));
require(_verify(_proof, keccak256(abi.encodePacked(_account, _tokens)), FREE_MERKLE_ROOT));
info.users[_account].freeMinted = true;
for (uint256 i = 0; i < _tokens; i++) {
_mint(_account);
}
emit FreeClaim(_account, _tokens);
}
function approve(address _approved, uint256 _tokenId) external {
require(msg.sender == ownerOf(_tokenId));
info.list[_tokenId].approved = _approved;
emit Approval(msg.sender, _approved, _tokenId);
}
function setApprovalForAll(address _operator, bool _approved) external {
info.users[msg.sender].approved[_operator] = _approved;
emit ApprovalForAll(msg.sender, _operator, _approved);
}
function transferFrom(address _from, address _to, uint256 _tokenId) external {
_transfer(_from, _to, _tokenId);
}
function safeTransferFrom(address _from, address _to, uint256 _tokenId) external {
safeTransferFrom(_from, _to, _tokenId, "");
}
function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes memory _data) public {
_transfer(_from, _to, _tokenId);
uint32 _size;
assembly {
_size := extcodesize(_to)
}
if (_size > 0) {
require(Receiver(_to).onERC721Received(msg.sender, _from, _tokenId, _data) == 0x150b7a02);
}
}
function metadata() external view returns (address) {
return address(info.metadata);
}
function name() external view returns (string memory) {
return info.metadata.name();
}
function symbol() external view returns (string memory) {
return info.metadata.symbol();
}
function baseURI() external view returns (string memory) {
return info.metadata.baseURI();
}
function tokenURI(uint256 _tokenId) external view returns (string memory) {
return info.metadata.tokenURI(_tokenId);
}
function owner() public view returns (address) {
return info.owner;
}
function totalSupply() public view returns (uint256) {
return info.totalSupply;
}
function openMintEnabled() public view returns (bool) {
return block.timestamp > info.startTime + OPEN_MINT_DELAY;
}
function paidSupply() public view returns (uint256) {
return info.paidSupply;
}
function hasFreeMinted(address _user) public view returns (bool) {
return info.users[_user].freeMinted;
}
function hasPaidMinted(address _user) public view returns (bool) {
return info.users[_user].paidMinted;
}
function balanceOf(address _owner) public view returns (uint256) {
return info.users[_owner].balance;
}
function ownerOf(uint256 _tokenId) public view returns (address) {
require(_tokenId < totalSupply());
return info.list[_tokenId].owner;
}
function getApproved(uint256 _tokenId) public view returns (address) {
require(_tokenId < totalSupply());
return info.list[_tokenId].approved;
}
function isApprovedForAll(address _owner, address _operator) public view returns (bool) {
return info.users[_owner].approved[_operator];
}
function _mint(address _receiver) internal {
require(totalSupply() < MAX_SUPPLY);
uint256 _tokenId = info.totalSupply++;
Token storage _newToken = info.list[_tokenId];
_newToken.owner = _receiver;
info.users[_receiver].balance++;
emit Transfer(address(0x0), _receiver, _tokenId);
emit Mint(_receiver, _tokenId);
}
function _transfer(address _from, address _to, uint256 _tokenId) internal {
address _owner = ownerOf(_tokenId);
address _approved = getApproved(_tokenId);
require(_from == _owner);
require(msg.sender == _owner || msg.sender == _approved || isApprovedForAll(_owner, msg.sender));
info.list[_tokenId].owner = _to;
if (_approved != address(0x0)) {
info.list[_tokenId].approved = address(0x0);
emit Approval(address(0x0), address(0x0), _tokenId);
}
info.users[_from].balance--;
info.users[_to].balance++;
emit Transfer(_from, _to, _tokenId);
}
function _verify(bytes32[] memory _proof, bytes32 _leaf, bytes32 _merkleRoot) internal pure returns (bool) {
bytes32 _computedHash = _leaf;
for (uint256 i = 0; i < _proof.length; i++) {
bytes32 _proofElement = _proof[i];
if (_computedHash <= _proofElement) {
_computedHash = keccak256(abi.encodePacked(_computedHash, _proofElement));
} else {
_computedHash = keccak256(abi.encodePacked(_proofElement, _computedHash));
}
}
return _computedHash == _merkleRoot;
}
}
Read Contract
MAX_SUPPLY 0x32cb6b0c → uint256
MINT_COST 0xc662e481 → uint256
balanceOf 0x70a08231 → uint256
baseURI 0x6c0360eb → string
getApproved 0x081812fc → address
hasFreeMinted 0xef6187a4 → bool
hasPaidMinted 0xbb850c41 → bool
isApprovedForAll 0xe985e9c5 → bool
metadata 0x392f37e9 → address
name 0x06fdde03 → string
openMintEnabled 0xde3c535c → bool
owner 0x8da5cb5b → address
ownerOf 0x6352211e → address
paidSupply 0x631525c3 → uint256
supportsInterface 0x01ffc9a7 → bool
symbol 0x95d89b41 → string
tokenURI 0xc87b56dd → string
totalSupply 0x18160ddd → uint256
Write Contract 13 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address _approved
uint256 _tokenId
claim 0x3d13f874
address _account
uint256 _tokens
bytes32[] _proof
forceUpdateAllMetadata 0xe6002b8c
No parameters
mint 0x1249c58b
No parameters
mint 0x7bf32270
address _account
bytes32[] _proof
mintMany 0x059513a6
uint256 _tokens
ownerWithdraw 0x4311de8f
No parameters
safeTransferFrom 0x42842e0e
address _from
address _to
uint256 _tokenId
safeTransferFrom 0xb88d4fde
address _from
address _to
uint256 _tokenId
bytes _data
setApprovalForAll 0xa22cb465
address _operator
bool _approved
setMetadata 0xf3cb8385
address _metadata
setOwner 0x13af4035
address _owner
transferFrom 0x23b872dd
address _from
address _to
uint256 _tokenId
Recent Transactions
No transactions found for this address