Token USDCoin

/**
 *Submitted for verification at Etherscan.io on 2018-07-30
*/

pragma solidity ^0.4.21;


/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
  function totalSupply() public view returns (uint256);
  function balanceOf(address who) public view returns (uint256);
  function transfer(address to, uint256 value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

contract owned {
    address public owner;

    constructor() public {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address newOwner) onlyOwner public {
        owner = newOwner;
    }

    function getOwned() onlyOwner public view returns (address) {
        return owner;
    }
}



/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
      return 0;
    }
    uint256 c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure 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;
  }

  /**
  * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}


/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public view returns (uint256);
  function transferFrom(address from, address to, uint256 value) public returns (bool);
  function approve(address spender, uint256 value) public returns (bool);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}


/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint256;

  mapping(address => uint256) balances;

  uint256 totalSupply_;

  /**
  * @dev total number of tokens in existence
  */
  function totalSupply() public view returns (uint256) {
    return totalSupply_;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[msg.sender]);

    // SafeMath.sub will throw if there is not enough balance.
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
    return true;
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of.
  * @return An uint256 representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances[_owner];
  }

}


/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is ERC20, BasicToken,owned {

  mapping (address => mapping (address => uint256)) internal allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint256 the amount of tokens to be transferred
   */
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[_from]);
    require(_value <= allowed[_from][msg.sender]);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    emit Transfer(_from, _to, _value);
    return true;
  }

  /**
   * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
   *
   * Beware that changing an allowance with this method brings the risk that someone may use both the old
   * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
   * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
   * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint256 _value) public returns (bool) {
    require((_value == 0) || allowed[msg.sender][_spender]== 0);
    allowed[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
  }

  /**
   * @dev Function to check the amount of tokens that an owner allowed to a spender.
   * @param _owner address The address which owns the funds.
   * @param _spender address The address which will spend the funds.
   * @return A uint256 specifying the amount of tokens still available for the spender.
   */
  function allowance(address _owner, address _spender) public view returns (uint256) {
    return allowed[_owner][_spender];
  }

  /**
   * @dev Increase the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To increment
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _addedValue The amount of tokens to increase the allowance by.
   */
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

  /**
   * @dev Decrease the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To decrement
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _subtractedValue The amount of tokens to decrease the allowance by.
   */
  function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }
  
  function mintToken( uint256 _value) onlyOwner public returns (bool) {
    totalSupply_ += _value;
        balances[msg.sender] += _value;
        emit Transfer(0x0, msg.sender, _value);
     return true;
  }

}


/**
 * @title SimpleToken
 * @dev Very simple ERC20 Token example, where all tokens are pre-assigned to the creator.
 * Note they can later distribute these tokens as they wish using `transfer` and other
 * `StandardToken` functions.
 */
contract USDCoinToken is StandardToken {

    string public constant name = "USDCoin"; // solium-disable-line uppercase
    string public constant symbol = "USC"; // solium-disable-line uppercase
    uint8 public constant decimals = 18; // solium-disable-line uppercase

    uint256 public constant INITIAL_SUPPLY = (100000) * (10 ** uint256(decimals));

    /**
    * @dev Constructor that gives msg.sender all of existing tokens.
    */
    constructor() public {
        totalSupply_ = INITIAL_SUPPLY;
        balances[msg.sender] = INITIAL_SUPPLY;
        emit Transfer(0x0, msg.sender, INITIAL_SUPPLY);
    }

}

• 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":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","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":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"INITIAL_SUPPLY","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"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":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getOwned","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"mintToken","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

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

bzzr://55b84714484bdd0301e7d9176a7b0e5cd36550378bbfa629edfdc997931a7eb8