Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-08-23
*/

pragma solidity ^0.4.25;

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

  function toUINT112(uint256 a) internal pure returns(uint112) {
    assert(uint112(a) == a);
    return uint112(a);
  }

  function toUINT120(uint256 a) internal pure returns(uint120) {
    assert(uint120(a) == a);
    return uint120(a);
  }

  function toUINT128(uint256 a) internal pure returns(uint128) {
    assert(uint128(a) == a);
    return uint128(a);
  }
}

contract ERC20Basic {
  uint256 public totalSupply;
  function balanceOf(address who) public constant returns (uint256);
  function transfer(address to, uint256 value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public constant 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);
}

contract BasicToken is ERC20Basic {
  using SafeMath for uint256;

  mapping(address => uint256) 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);
    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 constant returns (uint256 balance) {
    return balances[_owner];
  }

}

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);
    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 constant returns (uint256 remaining) {
    return allowed[_owner][_spender];
  }

}

contract BIVToken is StandardToken {

  string public constant name = "BIVToken";
  string public constant symbol = "BIV";
  uint8 public constant decimals = 18;


  uint256 public constant INITIAL_SUPPLY = 1000000000 * (10 ** uint256(decimals));
  
  constructor() public {
    totalSupply = INITIAL_SUPPLY;
    balances[msg.sender] = INITIAL_SUPPLY;
    emit Transfer(msg.sender, 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":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"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":"_owner","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"},{"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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

4992:432:0:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;5034:40;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5034:40:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;5034:40:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;4253:261;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;4253:261:0;-1:-1:-1;;;;;4253:261:0;;;;;;;;;;;;;;;;;;;;;;;;;1144:26;;8:9:-1;5:2;;;30:1;27;20:12;5:2;1144:26:0;;;;;;;;;;;;;;;;;;;;3164:454;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;3164:454:0;-1:-1:-1;;;;;3164:454:0;;;;;;;;;;;;5165:79;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5165:79:0;;;;5121:35;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5121:35:0;;;;;;;;;;;;;;;;;;;;;;;2639:113;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;2639:113:0;-1:-1:-1;;;;;2639:113:0;;;;;5079:37;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5079:37:0;;;;2037:393;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;2037:393:0;-1:-1:-1;;;;;2037:393:0;;;;;;;4841:142;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;4841:142:0;-1:-1:-1;;;;;4841:142:0;;;;;;;;;;5034:40;;;;;;;;;;;;;;;;;;;:::o;4253:261::-;4320:4;4342:11;;;4341:53;;-1:-1:-1;4367:10:0;4359:19;;;;:7;:19;;;;;;;;-1:-1:-1;;;;;4359:29:0;;;;;;;;;;:34;4341:53;4333:62;;;;;;;;4410:10;4402:19;;;;:7;:19;;;;;;;;-1:-1:-1;;;;;4402:29:0;;;;;;;;;;;;:38;;;4452;;;;;;;4402:29;;4410:10;4452:38;;;;;;;;;;;-1:-1:-1;4504:4:0;4253:261;;;;:::o;1144:26::-;;;;:::o;3164:454::-;3246:4;-1:-1:-1;;;;;3267:17:0;;;;3259:26;;;;;;-1:-1:-1;;;;;3310:15:0;;;;;;:8;:15;;;;;;3300:25;;;3292:34;;;;;;-1:-1:-1;;;;;3351:14:0;;;;;;:7;:14;;;;;;;;3366:10;3351:26;;;;;;;;3341:36;;;3333:45;;;;;;-1:-1:-1;;;;;3405:15:0;;;;;;:8;:15;;;;;;:27;;3425:6;3405:27;:19;:27;:::i;:::-;-1:-1:-1;;;;;3387:15:0;;;;;;;:8;:15;;;;;;:45;;;;3455:13;;;;;;;:25;;3473:6;3455:25;:17;:25;:::i;:::-;-1:-1:-1;;;;;3439:13:0;;;;;;;:8;:13;;;;;;;;:41;;;;3516:14;;;;;:7;:14;;;;;3531:10;3516:26;;;;;;;:38;;3547:6;3516:38;:30;:38;:::i;:::-;-1:-1:-1;;;;;3487:14:0;;;;;;;:7;:14;;;;;;;;3502:10;3487:26;;;;;;;;:67;;;;3566:28;;;;;;;;;;;3487:14;;3566:28;;;;;;;;;;;-1:-1:-1;3608:4:0;3164:454;;;;;:::o;5165:79::-;5206:38;5165:79;:::o;5121:35::-;5154:2;5121:35;:::o;2639:113::-;-1:-1:-1;;;;;2730:16:0;2699:15;2730:16;;;:8;:16;;;;;;;2639:113::o;5079:37::-;;;;;;;;;;;;;;;;;;;:::o;2037:393::-;2100:4;-1:-1:-1;;;;;2121:17:0;;;;2113:26;;;;;;2173:10;2164:20;;;;:8;:20;;;;;;2154:30;;;2146:39;;;;;;2290:10;2281:20;;;;:8;:20;;;;;;:32;;2306:6;2281:32;:24;:32;:::i;:::-;2267:10;2258:20;;;;:8;:20;;;;;;:55;;;;-1:-1:-1;;;;;2336:13:0;;;;;;:25;;2354:6;2336:25;:17;:25;:::i;:::-;-1:-1:-1;;;;;2320:13:0;;;;;;:8;:13;;;;;;;;;:41;;;;2373:33;;;;;;;2320:13;;2382:10;;2373:33;;;;;;;;;;-1:-1:-1;2420:4:0;2037:393;;;;:::o;4841:142::-;-1:-1:-1;;;;;4952:15:0;;;4919:17;4952:15;;;:7;:15;;;;;;;;:25;;;;;;;;;;;;;4841:142::o;479:113::-;537:7;560:6;;;;553:14;;;;-1:-1:-1;581:5:0;;;479:113::o;598:133::-;656:7;684:5;;;703:6;;;;696:14;;;;724:1;598:133;-1:-1:-1;;;598:133:0:o

bzzr://52f1b26a62e7bdfe494029fb369050be6d8b809bd3d93c10ab22580d19db42c8