Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

library SafeMath    - function add(uint a, uint b)    - function sub(uint a, uint b)    - function mul(uint a, uint b)    - function div(uint a, uint b)  contract ERC20    - function totalSupply()    - function balanceOf(address tokenOwner ...    - function allowance(address tokenOwner ...    - function transfer(address to, uint to ...    - function approve(address spender, uin ...    - function transferFrom(address from, a ...  contract Bitway is ERC20 *    - function ()    - function currentStage()    - function maxSupplyReached()    - function createTokens()    - function setComplete(bool _completed)    - function totalSupply()    - function balanceOf(address tokenOwner ...    - function transfer(address to, uint to ...    - function approve(address spender, uin ...    - function transferFrom(address from, a ...    - function allowance(address tokenOwner ...    - function supplyTokens(uint tokens)

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-07-29
*/

pragma solidity ^0.4.24;
// ----------------------------------------------------------------------------
// 'Bitway' 'ERC20 Token'
// 
// Name        : Bitway
// Symbol      : BTWX
// Max supply  : 21m
// Decimals    : 18
//
// Bitway "BTWX"
// ----------------------------------------------------------------------------
//
// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
library SafeMath {
    function add(uint a, uint b) internal pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function sub(uint a, uint b) internal pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
    function mul(uint a, uint b) internal pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function div(uint a, uint b) internal pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
}
// ----------------------------------------------------------------------------
// ERC20 Token Standard
// ----------------------------------------------------------------------------
contract ERC20 {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant 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);
}

// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name, decimals and totalSupply
// ----------------------------------------------------------------------------
contract Bitway is ERC20 {
    
    using SafeMath for uint;

    string public name = "Bitway";
    string public symbol = "BTWX";
    uint public totalSupply = 0;
    uint8 public decimals = 18;
    uint public RATE = 1000;
    
    uint multiplier = 10 ** uint(decimals);
    uint million = 10 ** 6;
    uint millionTokens = 1 * million * multiplier;
    
    uint constant stageTotal = 5;
    uint stage = 0;
    uint [stageTotal] targetSupply = [
         1 * millionTokens,
         2 * millionTokens,
         5 * millionTokens,
         10 * millionTokens,
         21 * millionTokens
    ];
    
    address public owner;
    bool public completed = true;
    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;
    
    constructor() public {
    owner = msg.sender;
    supplyTokens(millionTokens);
    }
    
    // ------------------------------------------------------------------------
    // Payable token creation
    // ------------------------------------------------------------------------
    function () public payable {
        createTokens();
    }
    
    // ------------------------------------------------------------------------
    // Returns currentStage
    // ------------------------------------------------------------------------
    function currentStage() public constant returns (uint) {
        return stage + 1;
    }
    
    // ------------------------------------------------------------------------
    // Returns maxSupplyReached True / False
    // ------------------------------------------------------------------------
    function maxSupplyReached() public constant returns (bool) {
        return stage >= stageTotal;
    }
    
    // ------------------------------------------------------------------------
    // Token creation
    // ------------------------------------------------------------------------
    function createTokens() public payable {
        require(!completed);
        supplyTokens(msg.value.mul((15 - stage) * RATE / 10)); 
        owner.transfer(msg.value);
    }
    
    // ------------------------------------------------------------------------
    // Complete token sale
    // ------------------------------------------------------------------------
    function setComplete(bool _completed) public {
        require(msg.sender == owner);
        completed = _completed;
    }
    
    // ------------------------------------------------------------------------
    // Check totalSupply
    // ------------------------------------------------------------------------
    function totalSupply() public view returns (uint) {
        return totalSupply;
    }

    // ------------------------------------------------------------------------
    // Get the token balance for account `tokenOwner`
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public view returns (uint) {
        return balances[tokenOwner];
    }

    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to `to` account
    // ------------------------------------------------------------------------
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = balances[msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Token owner can approve for `spender` to transferFrom(...) `tokens` from the token owner's account
    // ------------------------------------------------------------------------
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Transfer `tokens` from the `from` account to the `to` account
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = balances[from].sub(tokens);
        allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens);
        emit Transfer(from, to, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }
    
    // ------------------------------------------------------------------------
    // Create tokens and supply to msg.sender balances
    // ------------------------------------------------------------------------
    function supplyTokens(uint tokens) private {
        require(!maxSupplyReached());
        balances[msg.sender] = balances[msg.sender].add(tokens);
        totalSupply = totalSupply.add(tokens);
        if (totalSupply >= targetSupply[stage]) {
            stage += 1;
        }
        emit Transfer(address(0), msg.sender, tokens);
    }

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"tokens","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"currentStage","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"RATE","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"maxSupplyReached","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"completed","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"createTokens","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_completed","type":"bool"}],"name":"setComplete","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"tokenOwner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Approval","type":"event"}]

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

bzzr://c43f415d01dfcb9ee80e87c5d5d76ed8de1b3229e39831243819896097c0cc47