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 contract ERC20 *    - function balanceOf(address tokenOwner ...    - function tokenRemaning(address token)    - function transfer(address receiver, u ...    - function approve(address delegate, ui ...    - function allowance(address owner, add ...    - function transferFrom(address owner, ...

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/**
 *Submitted for verification at Etherscan.io on 2022-04-23
*/

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.6.2;

contract ERC20 {

    string public constant name = "VentiSwap Token";
    string public constant symbol = "VST";
    uint8 public constant decimals = 18;  
    uint256 public constant totalSupply_ = 100000000000000000000000000;

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


    mapping(address => uint256) balances;

    mapping(address => mapping (address => uint256)) allowed;
    
   constructor() public {  
	balances[msg.sender] = 100000000000000000000000000;
    }  

 
    function balanceOf(address tokenOwner) external view returns (uint) {
        return balances[tokenOwner];
    }
     function tokenRemaning(address token) external view returns (uint) {
        return balances[token];
}
    function transfer(address receiver, uint numTokens) public returns (bool) {
       uint OwnerBalance=balances[msg.sender];
        require(numTokens <= OwnerBalance ,"Don't have enough Tokens...");
        
        balances[msg.sender] = OwnerBalance-numTokens;
        balances[receiver]+=numTokens;
        emit Transfer(msg.sender, receiver, numTokens);
        return true;
    }

    function approve(address delegate, uint numTokens) external returns (bool) {
        allowed[msg.sender][delegate] = numTokens;
        Approval(msg.sender, delegate, numTokens);
        return true;
    }

    function allowance(address owner, address delegate) external view returns (uint) {
        return allowed[owner][delegate];
    }

    function transferFrom(address owner, address buyer, uint numTokens) public returns (bool) {
       uint OwnerBalance=balances[owner];
       uint AlowedOwner=allowed[owner][msg.sender];

        require(numTokens <= OwnerBalance,"Don't have enough Tokens...");    
        require(numTokens <= AlowedOwner);
    
        balances[owner] = OwnerBalance-numTokens;
        allowed[owner][msg.sender] =AlowedOwner-numTokens;
        balances[buyer] +=numTokens;
        emit Transfer(owner, buyer, numTokens);
        return true;
    }
}

• Certik - Mar 18th, 2022 - Security Audit Report

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenOwner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokens","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"delegate","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"delegate","type":"address"},{"internalType":"uint256","name":"numTokens","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenOwner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"tokenRemaning","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply_","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"numTokens","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"buyer","type":"address"},{"internalType":"uint256","name":"numTokens","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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