Cryo Explorer Ethereum Mainnet

Address Contract Partially Verified

Address 0xDe52a16C6DB7914e6953E27A7df4Ce6A315f8b45
Balance 0 ETH
Nonce 1
Code Size 6620 bytes
Creator 0x49BD7063...3EE1 at tx 0xb382b5e5...599834
Indexed Transactions 0
External Etherscan · Sourcify

Contract Bytecode

6620 bytes
0x608060405234801561001057600080fd5b50600436106101005760003560e01c80636618846311610097578063aa271e1a11610066578063aa271e1a1461053b578063d73dd62314610595578063dd62ed3e146105f9578063fca3b5aa1461067157610100565b8063661884631461039857806370a08231146103fc57806395d89b4114610454578063a9059cbb146104d757610100565b80633092afd5116100d35780633092afd51461028e578063313ce567146102d257806340c10f19146102f057806342966c681461035457610100565b806306fdde0314610105578063095ea7b31461018857806318160ddd146101ec57806323b872dd1461020a575b600080fd5b61010d6106b5565b6040518080602001828103825283818151815260200191508051906020019080838360005b8381101561014d578082015181840152602081019050610132565b50505050905090810190601f16801561017a5780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b6101d46004803603604081101561019e57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506106ee565b60405180821515815260200191505060405180910390f35b6101f46107e0565b6040518082815260200191505060405180910390f35b6102766004803603606081101561022057600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506107e6565b60405180821515815260200191505060405180910390f35b6102d0600480360360208110156102a457600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610b9f565b005b6102da610c58565b6040518082815260200191505060405180910390f35b61033c6004803603604081101561030657600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610c5d565b60405180821515815260200191505060405180910390f35b6103806004803603602081101561036a57600080fd5b8101908080359060200190929190505050610dd9565b60405180821515815260200191505060405180910390f35b6103e4600480360360408110156103ae57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610fab565b60405180821515815260200191505060405180910390f35b61043e6004803603602081101561041257600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061123c565b6040518082815260200191505060405180910390f35b61045c611285565b6040518080602001828103825283818151815260200191508051906020019080838360005b8381101561049c578082015181840152602081019050610481565b50505050905090810190601f1680156104c95780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b610523600480360360408110156104ed57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506112be565b60405180821515815260200191505060405180910390f35b61057d6004803603602081101561055157600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291905050506115b0565b60405180821515815260200191505060405180910390f35b6105e1600480360360408110156105ab57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050611606565b60405180821515815260200191505060405180910390f35b61065b6004803603604081101561060f57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611802565b6040518082815260200191505060405180910390f35b6106b36004803603602081101561068757600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611889565b005b6040518060400160405280600b81526020017f4f5543484920546f6b656e00000000000000000000000000000000000000000081525081565b600081600460003373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020819055508273ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925846040518082815260200191505060405180910390a36001905092915050565b60025481565b60008073ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff16141561082157600080fd5b600360008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000205482111561086d57600080fd5b600460008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060003373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020548211156108f657600080fd5b61094882600360008773ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000205461194190919063ffffffff16565b600360008673ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020819055506109dd82600360008673ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152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Verified Source Code Partial Match

Compiler: v0.6.12+commit.27d51765 EVM: istanbul Optimization: No
OuchiToken.sol 139 lines 
pragma solidity ^0.6.0;

library SafeMath {
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        assert(c / a == b);
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a / b;
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }
}

contract MinterRole {
    bool private _initialized;
    mapping(address => bool) private _minters;

    constructor () internal {
        _minters[msg.sender] = true;
    }

    modifier onlyMinter() {
        require(isMinter(msg.sender), "Mintable: msg.sender does not have the Minter role");
        _;
    }

    function isMinter(address _addr) public view returns (bool) {
        return _minters[_addr];
    }

    function setMinter(address _addr) public onlyMinter {
        _minters[_addr] = true;
    }
    
    function removeMinter(address _addr) public onlyMinter {
        _minters[_addr] = false;     
    }
}

contract OuchiToken is MinterRole {
    using SafeMath for uint256;
    
    string public constant name = "OUCHI Token";
    string public constant symbol = "OUCHI";
    uint256 public constant decimals = 18;
    uint256 public totalSupply = 0;
    
    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) internal allowed;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    
    constructor() public {
        // Do nothing
    }

    function transfer(address _to, uint256 _value) external returns (bool) {
        require(_to != address(0), "Cannot send to zero address");
        require(balances[msg.sender] >= _value, "Insufficient fund");

        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        
        emit Transfer(msg.sender, _to, _value);
        return true;
    }
    
    function balanceOf(address _owner) external view returns (uint256 balance) {
        return balances[_owner];
    }

    function transferFrom(address _from, address _to, uint256 _value) external returns (bool) {
        require(_to != address(0));
        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);

        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(_value);
        allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
        
        emit Transfer(_from, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool) {
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) public view returns (uint256) {
        return allowed[_owner][_spender];
    }
    
    function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
        allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }
    
    function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
        uint oldValue = allowed[msg.sender][_spender];
        if (_subtractedValue > oldValue) {
            allowed[msg.sender][_spender] = 0;
        } else {
            allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
        }
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }
    
    function mint(address payable _to, uint256 _value) external onlyMinter returns (bool) {
        balances[_to] = balances[_to].add(_value);
        totalSupply = totalSupply.add(_value);
        emit Transfer(address(0), _to, _value);
    }

    function burn(uint256 _value) external returns (bool) {
        require(balances[msg.sender] >= _value, "Insufficient fund");
        balances[msg.sender] = balances[msg.sender].sub(_value);
        totalSupply = totalSupply.sub(_value);
        emit Transfer(msg.sender, address(0), _value);
    }
}

Read Contract

allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint256
isMinter 0xaa271e1a → bool
name 0x06fdde03 → string
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256

Write Contract 9 functions

These functions modify contract state and require a wallet transaction to execute.

approve 0x095ea7b3
address _spender
uint256 _value
returns: bool
burn 0x42966c68
uint256 _value
returns: bool
decreaseApproval 0x66188463
address _spender
uint256 _subtractedValue
returns: bool
increaseApproval 0xd73dd623
address _spender
uint256 _addedValue
returns: bool
mint 0x40c10f19
address _to
uint256 _value
returns: bool
removeMinter 0x3092afd5
address _addr
setMinter 0xfca3b5aa
address _addr
transfer 0xa9059cbb
address _to
uint256 _value
returns: bool
transferFrom 0x23b872dd
address _from
address _to
uint256 _value
returns: bool
Transactions Internal Txs Token Transfers Events

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