Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

library SafeMath    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function add(uint256 a, uint256 b)  contract Ownable    - function Ownable()    - function transferOwnership(address ne ...  contract ERC20Basic    - function balanceOf(address who)    - function transfer(address to, uint256 ...  contract ERC20 is ERC20Basic    - function allowance(address owner, add ...    - function transferFrom(address from, a ...    - function approve(address spender, uin ...  contract BasicToken is ERC20Basic    - function transfer(address _to, uint25 ...    - function balanceOf(address _owner)  contract StandardToken is ERC20, B ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...    - function increaseApproval(address _sp ...    - function decreaseApproval(address _sp ...  contract SPHTX is Ownable, Standar ... *    - function SPHTX()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-01-10
*/

pragma solidity ^0.4.18;

/**
* zeppelin-solidity 1.4.0
*/
/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {
  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;
  }

  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;
  }

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

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

/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 */
contract Ownable {
  address public owner;


  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);


  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() public {
    owner = msg.sender;
  }


  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }


  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) onlyOwner public {
    require(newOwner != address(0));
    OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}
/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */

contract ERC20Basic {
  uint256 public totalSupply;
  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);
}

/**
 * @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) public balances;

  /**
  * @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);
    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 {

  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);
    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) {
    allowed[msg.sender][_spender] = _value;
    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];
  }

  /**
   * 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
   */
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

  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);
    }
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    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 SPHTX is Ownable, StandardToken {

  uint8 public constant decimals = 18;
  string public constant name = "SPHTX";
  string public constant symbol = "SPHTX";
  uint256 public constant initialSupply = 350000000 * 10 ** uint256(decimals);

  /**
   * @dev Constructor that gives msg.sender all of existing tokens.
   */
  function SPHTX() public {
    totalSupply = initialSupply;
    balances[msg.sender] = initialSupply;
  }

}

• 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":"","type":"address"}],"name":"balances","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":true,"inputs":[],"name":"initialSupply","outputs":[{"name":"","type":"uint256"}],"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":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"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"}]

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

bzzr://562268a759cb8101b96f8888abf89a41632c5f2d68635f6f69aab04f86f09b3f