Contract Source Code (Solidity Standard Json-Input format)

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pragma solidity ^0.4.25;

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

    function div(uint256 a, uint256 b) internal constant returns (uint256) {
        assert(b > 0); // Solidity automatically throws when dividing by 0
        uint256 c = a / b;
        assert(a == b * c + (a % b)); // There is no case in which this doesn't hold
        return c;
    }

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

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

// ERC20 Token Smart Contract
contract CRYNcoin {
    string public constant name = "CRYNcoin";
    string public constant symbol = "CRYN";
    uint8 public constant decimals = 8;
    uint256 public _totalSupply = 88888888800000000;
    uint256 public RATE = 1;
    bool public isMinting = false;

    using SafeMath for uint256;
    address public owner;

    // Functions with this modifier can only be executed by the owner
    modifier onlyOwner() {
        if (msg.sender != owner) {
            throw;
        }
        _;
    }

    // Balances for each account
    mapping(address => uint256) balances;
    // Owner of account approves the transfer of an amount to another account
    mapping(address => mapping(address => uint256)) allowed;

    // Its a payable function works as a token factory.
    function() payable {
        createTokens();
    }

    // Constructor
    constructor() public payable {
        owner = 0x7f85a1D215D6Eba628DdE0FE331497463d8260bd;
        balances[owner] = _totalSupply;
        Transfer(address(0), owner, _totalSupply);
    }

    //allows owner to burn tokens that are not sold in a crowdsale
    function burnTokens(uint256 _value) onlyOwner {
        require(balances[msg.sender] >= _value && _value > 0);
        _totalSupply = _totalSupply.sub(_value);
        balances[msg.sender] = balances[msg.sender].sub(_value);
    }

    // This function creates Tokens
    function createTokens() payable {
        if (isMinting == true) {
            require(msg.value > 0);
            uint256 tokens = msg.value.div(100000000000000).mul(RATE);
            balances[msg.sender] = balances[msg.sender].add(tokens);
            _totalSupply = _totalSupply.add(tokens);
            owner.transfer(msg.value);
        } else {
            throw;
        }
    }

    function endCrowdsale() onlyOwner {
        isMinting = false;
    }

    function changeCrowdsaleRate(uint256 _value) onlyOwner {
        RATE = _value;
    }

    function totalSupply() constant returns (uint256) {
        return _totalSupply;
    }

    // What is the balance of a particular account?
    function balanceOf(address _owner) constant returns (uint256) {
        return balances[_owner];
    }

    // Transfer the balance from owner's account to another account
    function transfer(address _to, uint256 _value) returns (bool) {
        require(balances[msg.sender] >= _value && _value > 0);
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        Transfer(msg.sender, _to, _value);
        return true;
    }

    // Send _value amount of tokens from address _from to address _to
    // The transferFrom method is used for a withdraw workflow, allowing contracts to send
    // tokens on your behalf, for example to "deposit" to a contract address and/or to charge
    // fees in sub-currencies; the command should fail unless the _from account has
    // deliberately authorized the sender of the message via some mechanism; we propose
    // these standardized APIs for approval:
    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) returns (bool) {
        require(
            allowed[_from][msg.sender] >= _value &&
                balances[_from] >= _value &&
                _value > 0
        );
        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(_value);
        allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
        Transfer(_from, _to, _value);
        return true;
    }

    // Allow _spender to withdraw from your account, multiple times, up to the _value amount.
    // If this function is called again it overwrites the current allowance with _value.
    function approve(address _spender, uint256 _value) returns (bool) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    // Returns the amount which _spender is still allowed to withdraw from _owner
    function allowance(address _owner, address _spender)
        constant
        returns (uint256)
    {
        return allowed[_owner][_spender];
    }

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(
        address indexed _owner,
        address indexed _spender,
        uint256 _value
    );
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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