false
false
0

Contract Address Details

0xA7e66C8456f75221248EE2BF26E0019f8ce55E4A

Contract Name
Minter
Creator
0xc7d98c–7f3521 at 0xe9013c–e9afbb
Balance
0 CLO
Tokens
Fetching tokens...
Transactions
264 Transactions
Transfers
150 Transfers
Gas Used
19,545,496
Last Balance Update
16292258
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
Minter




Optimization enabled
true
Compiler version
v0.8.19+commit.7dd6d404




Optimization runs
200
EVM Version
default




Verified at
2024-09-26T15:33:07.960997Z

Contract source code

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

interface INFT {
    function ownerOf(uint256 id) external view returns(address);
    function getClassForTokenID(uint256 id) external view returns(uint256);
    function mintWithClass(uint256 classId) external returns (uint256 _newTokenID);
    function silentTransfer(address _to, uint256 _tokenId) external returns (bool);
}

contract Migration {
    struct NFT {
        address owner;
        uint256 class;
    }

    INFT constant public nft = INFT(0x9C02E4aEb4a29084553b5Fdc3B5f6DF72F11E104);

    mapping(address user => uint256[] tokens) public users;

    function snapshot() external view returns(NFT[253] memory nfts)
    {
        for (uint i; i<253; i++) {
            nfts[i].owner = nft.ownerOf(i);
            nfts[i].class = nft.getClassForTokenID(i);
        }
    }

    uint256 public start;
    function record(uint len) external {
        len = start + len;
        uint i = start;
        if (len > 253) len = 253;
        for (; i<len; i++) {
            address owner = nft.ownerOf(i);
            uint256 class = nft.getClassForTokenID(i);
            users[owner].push(class);
        }
        start = i;
    }

    function getCalsses(address user) external view returns(uint256[] memory classes) {
        return users[user];
    }

}

contract Minter {
    INFT constant public nft = INFT(0x9C02E4aEb4a29084553b5Fdc3B5f6DF72F11E104);
    Migration constant public snapshot = Migration(0xAcB2F7105ad6dF25fecEA32B99EF4785B60e0D71);

    mapping(address user => bool) public isProcessed;

    function claim() external {
        require(!isProcessed[msg.sender], "Already processed");
        uint256[] memory classes = snapshot.getCalsses(msg.sender);
        require(classes.length != 0, "User is not eligible to claim");
        isProcessed[msg.sender] = true;
        for (uint i; i < classes.length; i++) {
            if (classes[i] <= 2) _mint(msg.sender, 6);   // mint ultra rare NFT
            else if (classes[i] <= 4) _mint(msg.sender, 7);   // mint rare NFT
            else if (classes[i] == 5) _mint(msg.sender, 8);   // mint common NFT
            else revert("wrong NFT class");
        }
    }

    function _mint(address user, uint256 classId) internal {
        uint256 id = nft.mintWithClass(classId);
        nft.silentTransfer(user, id);
    }
}

Contract ABI

[{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"claim","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isProcessed","inputs":[{"type":"address","name":"user","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract INFT"}],"name":"nft","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract Migration"}],"name":"snapshot","inputs":[]}]

Contract Creation Code

Verify & Publish 
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Deployed ByteCode

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