Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract Token
•    - function totalSupply ()
•    - function balanceOf (address _owner)
•    - function transfer (address _to, uint2 ...
•    - function transferFrom (address _from, ...
•    - function approve (address _spender, u ...
•    - function allowance (address _owner, a ...
•  contract SafeMath
•    - function safeAdd (uint256 x, uint256 ...
•    - function safeSub (uint256 x, uint256 ...
•    - function safeMul (uint256 x, uint256 ...
•  contract AbstractToken is Token, S ...
•    - function AbstractToken ()
•    - function balanceOf (address _owner)
•    - function transfer (address _to, uint2 ...
•    - function transferFrom (address _from, ...
•    - function approve (address _spender, u ...
•    - function allowance (address _owner, a ...
•  contract StandardToken is Abstract ...
•    - function StandardToken (address _toke ...
•    - function totalSupply ()
•    - function balanceOf (address _owner)
•  contract BCAPToken is StandardToke ... *
•    - function BCAPToken (address _tokenIss ...
•    - function freezeTransfers ()
•    - function unfreezeTransfers ()
•    - function transfer (address _to, uint2 ...
•    - function transferFrom (address _from, ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-05-15
*/

/*
 * Blockchain Capital Token Smart Contract.  Copyright © 2017 by ABDK
 * Consulting.  
 */

/*
 * ERC-20 Standard Token Smart Contract Interface.
 * Copyright © 2016 by ABDK Consulting.
 */
pragma solidity ^0.4.1;

/**
 * ERC-20 standard token interface, as defined
 * <a href="http://github.com/ethereum/EIPs/issues/20">here</a>.
 */
contract Token {
  /**
   * Get total number of tokens in circulation.
   *
   * @return total number of tokens in circulation
   */
  function totalSupply () constant returns (uint256 supply);

  /**
   * Get number of tokens currently belonging to given owner.
   *
   * @param _owner address to get number of tokens currently belonging to the
            owner of
   * @return number of tokens currently belonging to the owner of given address
   */
  function balanceOf (address _owner) constant returns (uint256 balance);

  /**
   * Transfer given number of tokens from message sender to given recipient.
   *
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer to the owner of given address
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transfer (address _to, uint256 _value) returns (bool success);

  /**
   * Transfer given number of tokens from given owner to given recipient.
   *
   * @param _from address to transfer tokens from the owner of
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer from given owner to given
            recipient
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transferFrom (address _from, address _to, uint256 _value)
  returns (bool success);

  /**
   * Allow given spender to transfer given number of tokens from message sender.
   *
   * @param _spender address to allow the owner of to transfer tokens from
            message sender
   * @param _value number of tokens to allow to transfer
   * @return true if token transfer was successfully approved, false otherwise
   */
  function approve (address _spender, uint256 _value) returns (bool success);

  /**
   * Tell how many tokens given spender is currently allowed to transfer from
   * given owner.
   *
   * @param _owner address to get number of tokens allowed to be transferred
   *        from the owner of
   * @param _spender address to get number of tokens allowed to be transferred
   *        by the owner of
   * @return number of tokens given spender is currently allowed to transfer
   *         from given owner
   */
  function allowance (address _owner, address _spender) constant
  returns (uint256 remaining);

  /**
   * Logged when tokens were transferred from one owner to another.
   *
   * @param _from address of the owner, tokens were transferred from
   * @param _to address of the owner, tokens were transferred to
   * @param _value number of tokens transferred
   */
  event Transfer (address indexed _from, address indexed _to, uint256 _value);

  /**
   * Logged when owner approved his tokens to be transferred by some spender.
   *
   * @param _owner owner who approved his tokens to be transferred
   * @param _spender spender who were allowed to transfer the tokens belonging
   *        to the owner
   * @param _value number of tokens belonging to the owner, approved to be
   *        transferred by the spender
   */
  event Approval (
    address indexed _owner, address indexed _spender, uint256 _value);
}

/*
 * Safe Math Smart Contract.  Copyright © 2016 by ABDK Consulting.
 */
/**
 * Provides methods to safely add, subtract and multiply uint256 numbers.
 */
contract SafeMath {
  uint256 constant private MAX_UINT256 =
    0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;

  /**
   * Add two uint256 values, throw in case of overflow.
   *
   * @param x first value to add
   * @param y second value to add
   * @return x + y
   */
  function safeAdd (uint256 x, uint256 y)
  constant internal
  returns (uint256 z) {
    if (x > MAX_UINT256 - y) throw;
    return x + y;
  }

  /**
   * Subtract one uint256 value from another, throw in case of underflow.
   *
   * @param x value to subtract from
   * @param y value to subtract
   * @return x - y
   */
  function safeSub (uint256 x, uint256 y)
  constant internal
  returns (uint256 z) {
    if (x < y) throw;
    return x - y;
  }

  /**
   * Multiply two uint256 values, throw in case of overflow.
   *
   * @param x first value to multiply
   * @param y second value to multiply
   * @return x * y
   */
  function safeMul (uint256 x, uint256 y)
  constant internal
  returns (uint256 z) {
    if (y == 0) return 0; // Prevent division by zero at the next line
    if (x > MAX_UINT256 / y) throw;
    return x * y;
  }
}

/*
 * Abstract Token Smart Contract.  Copyright © 2017 by ABDK Consulting.
 */

/**
 * Abstract Token Smart Contract that could be used as a base contract for
 * ERC-20 token contracts.
 */
contract AbstractToken is Token, SafeMath {
  /**
   * Create new Abstract Token contract.
   */
  function AbstractToken () {
    // Do nothing
  }

  /**
   * Get number of tokens currently belonging to given owner.
   *
   * @param _owner address to get number of tokens currently belonging to the
            owner of
   * @return number of tokens currently belonging to the owner of given address
   */
  function balanceOf (address _owner) constant returns (uint256 balance) {
    return accounts [_owner];
  }

  /**
   * Transfer given number of tokens from message sender to given recipient.
   *
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer to the owner of given address
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transfer (address _to, uint256 _value) returns (bool success) {
    if (accounts [msg.sender] < _value) return false;
    if (_value > 0 && msg.sender != _to) {
      accounts [msg.sender] = safeSub (accounts [msg.sender], _value);
      accounts [_to] = safeAdd (accounts [_to], _value);
      Transfer (msg.sender, _to, _value);
    }
    return true;
  }

  /**
   * Transfer given number of tokens from given owner to given recipient.
   *
   * @param _from address to transfer tokens from the owner of
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer from given owner to given
            recipient
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transferFrom (address _from, address _to, uint256 _value)
  returns (bool success) {
    if (allowances [_from][msg.sender] < _value) return false;
    if (accounts [_from] < _value) return false;

    allowances [_from][msg.sender] =
      safeSub (allowances [_from][msg.sender], _value);

    if (_value > 0 && _from != _to) {
      accounts [_from] = safeSub (accounts [_from], _value);
      accounts [_to] = safeAdd (accounts [_to], _value);
      Transfer (_from, _to, _value);
    }
    return true;
  }

  /**
   * Allow given spender to transfer given number of tokens from message sender.
   *
   * @param _spender address to allow the owner of to transfer tokens from
            message sender
   * @param _value number of tokens to allow to transfer
   * @return true if token transfer was successfully approved, false otherwise
   */
  function approve (address _spender, uint256 _value) returns (bool success) {
    allowances [msg.sender][_spender] = _value;
    Approval (msg.sender, _spender, _value);

    return true;
  }

  /**
   * Tell how many tokens given spender is currently allowed to transfer from
   * given owner.
   *
   * @param _owner address to get number of tokens allowed to be transferred
   *        from the owner of
   * @param _spender address to get number of tokens allowed to be transferred
   *        by the owner of
   * @return number of tokens given spender is currently allowed to transfer
   *         from given owner
   */
  function allowance (address _owner, address _spender) constant
  returns (uint256 remaining) {
    return allowances [_owner][_spender];
  }

  /**
   * Mapping from addresses of token holders to the numbers of tokens belonging
   * to these token holders.
   */
  mapping (address => uint256) accounts;

  /**
   * Mapping from addresses of token holders to the mapping of addresses of
   * spenders to the allowances set by these token holders to these spenders.
   */
  mapping (address => mapping (address => uint256)) private allowances;
}


/*
 * Standard Token Smart Contract.  Copyright © 2016 by ABDK Consulting.
 */


/**
 * Standard Token Smart Contract that implements ERC-20 token with special
 * unlimited supply "token issuer" account.
 */
contract StandardToken is AbstractToken {
  uint256 constant private MAX_UINT256 =
    0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;

  /**
   * Create new Standard Token contract with given "token issuer" account.
   *
   * @param _tokenIssuer address of "token issuer" account
   */
  function StandardToken (address _tokenIssuer) AbstractToken () {
    tokenIssuer = _tokenIssuer;
    accounts [_tokenIssuer] = MAX_UINT256;
  }

  /**
   * Get total number of tokens in circulation.
   *
   * @return total number of tokens in circulation
   */
  function totalSupply () constant returns (uint256 supply) {
    return safeSub (MAX_UINT256, accounts [tokenIssuer]);
  }

  /**
   * Get number of tokens currently belonging to given owner.
   *
   * @param _owner address to get number of tokens currently belonging to the
            owner of
   * @return number of tokens currently belonging to the owner of given address
   */
  function balanceOf (address _owner) constant returns (uint256 balance) {
    return _owner == tokenIssuer ? 0 : AbstractToken.balanceOf (_owner);
  }

  /**
   * Address of "token issuer" account.
   */
  address private tokenIssuer;
}

/**
 * Blockchain Capital Token Smart Contract.
 */
contract BCAPToken is StandardToken {
  /**
   * Create new Blockchain Capital Token contract with given token issuer
   * address.
   *
   * @param _tokenIssuer address of token issuer
   */
  function BCAPToken (address _tokenIssuer)
    StandardToken (_tokenIssuer) {
    owner = _tokenIssuer;
  }

  /**
   * Freeze token transfers.
   */
  function freezeTransfers () {
    if (msg.sender != owner) throw;

    if (!transfersFrozen) {
      transfersFrozen = true;
      Freeze ();
    }
  }

  /**
   * Unfreeze token transfers.
   */
  function unfreezeTransfers () {
    if (msg.sender != owner) throw;

    if (transfersFrozen) {
      transfersFrozen = false;
      Unfreeze ();
    }
  }

  /**
   * Transfer given number of tokens from message sender to given recipient.
   *
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer to the owner of given address
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transfer (address _to, uint256 _value) returns (bool success) {
    if (transfersFrozen) return false;
    else return AbstractToken.transfer (_to, _value);
  }

  /**
   * Transfer given number of tokens from given owner to given recipient.
   *
   * @param _from address to transfer tokens from the owner of
   * @param _to address to transfer tokens to the owner of
   * @param _value number of tokens to transfer from given owner to given
            recipient
   * @return true if tokens were transferred successfully, false otherwise
   */
  function transferFrom (address _from, address _to, uint256 _value)
  returns (bool success) {
    if (transfersFrozen) return false;
    else return AbstractToken.transferFrom (_from, _to, _value);
  }

  /**
   * Logged when transfers were frozen.
   */
  event Freeze ();

  /**
   * Logged when transfers were unfrozen.
   */
  event Unfreeze ();

  /**
   * Address of the owner of smart contract.  Only owner is allowed to
   * freeze/unfreeze transfers.
   */
  address owner;

  /**
   * Whether transfers are currently frozen or not.
   */
  bool transfersFrozen = false;
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[],"name":"freezeTransfers","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"supply","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"unfreezeTransfers","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"_tokenIssuer","type":"address"}],"payable":false,"type":"constructor"},{"anonymous":false,"inputs":[],"name":"Freeze","type":"event"},{"anonymous":false,"inputs":[],"name":"Unfreeze","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":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]

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

00000000000000000000000003b92813983f611a6bfdf0c23c4f289ed073dcf5

-----Decoded View---------------
Arg [0] : _tokenIssuer (address): 0x03B92813983F611A6BfdF0C23C4F289eD073DcF5

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000003b92813983f611a6bfdf0c23c4f289ed073dcf5

bzzr://5e64ce47ca67e1c613a62eff9d1f0be90ee852f0ad9fa29c4ca14e102bb4215d