ETH Price: $2,971.04 (-2.30%)

Transaction Decoder

Block:
22849812 at Jul-05-2025 01:43:47 AM +UTC
Transaction Fee:
0.000035207126038914 ETH $0.10
Gas Used:
46,182 Gas / 0.762356027 Gwei

Emitted Events:

283 MerchantToken.Approval( tokenOwner=[Sender] 0x0b0c94a11106469309570fd847ad8b0b6bd9ab7f, spender=0x40aA958d...a374bcD7f, tokens=68371578947368421053 )

Account State Difference:

  Address   Before After State Difference Code
0x0B0c94A1...b6BD9ab7F
0.000515843128861218 Eth
Nonce: 115
0.000480636002822304 Eth
Nonce: 116
0.000035207126038914
(Titan Builder)
15.376926848443146817 Eth15.376949939443146817 Eth0.000023091
0xE66b3AA3...69DB3324F

Execution Trace

MerchantToken.approve( spender=0x40aA958dd87FC8305b97f2BA922CDdCa374bcD7f, tokens=68371578947368421053 ) => ( success=True )
pragma solidity ^0.5.0;


contract ERC20Interface {
    function totalSupply() public view returns (uint);
    function balanceOf(address tokenOwner) public view returns (uint balance);
    function allowance(address tokenOwner, address spender) public view returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}


contract SafeMath {
    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0);
        c = a / b;
    }
}


contract MerchantToken is ERC20Interface, SafeMath {
    string constant public name = "Merchant Token";
    string constant public symbol = "MTO";
    uint8 constant public decimals = 18;
    uint256 constant public _totalSupply = 100000000000000000000000000;
    
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowed;

    constructor() public {
        balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    function totalSupply() public view returns (uint) {
        return _totalSupply  - balances[address(0)];
    }

    function balanceOf(address tokenOwner) public view returns (uint balance) {
        return balances[tokenOwner];
    }

    function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }

    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }
    
    function increaseApproval(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = safeAdd(allowed[msg.sender][spender], tokens);
        return true;
    }
    
    function decreaseApproval(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = safeSub(allowed[msg.sender][spender], tokens);
        return true;
    }

    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }
}