ETH Price: $2,727.25 (-1.63%)

Transaction Decoder

Block:
22627127 at Jun-03-2025 10:32:23 PM +UTC
Transaction Fee:
0.0000956978383707 ETH $0.26
Gas Used:
46,170 Gas / 2.07272771 Gwei

Emitted Events:

258 MerchantToken.Approval( tokenOwner=[Sender] 0x6cf68b1fe4ed3a50a78f22dd0ba8d4ba4a51457f, spender=0x11111112...73A960582, tokens=240548980470000000000 )

Account State Difference:

  Address   Before After State Difference Code
(Titan Builder)
11.582085274399681486 Eth11.582112976399681486 Eth0.000027702
0x6CF68B1F...A4A51457f
0.001028744242500875 Eth
Nonce: 13
0.000933046404130175 Eth
Nonce: 14
0.0000956978383707
0xE66b3AA3...69DB3324F

Execution Trace

MerchantToken.approve( spender=0x1111111254EEB25477B68fb85Ed929f73A960582, tokens=240548980470000000000 ) => ( 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;
    }
}