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 contract ERC20Basic    - function balanceOf(address who)    - function transfer(address to, uint va ... library SafeMath    - function mul(uint a, uint b)    - function div(uint a, uint b)    - function sub(uint a, uint b)    - function add(uint a, uint b)    - function max64(uint64 a, uint64 b)    - function min64(uint64 a, uint64 b)    - function max256(uint256 a, uint256 b)    - function min256(uint256 a, uint256 b)    - function assert(bool assertion)  contract BasicToken is ERC20Basic    - function transfer(address _to, uint _ ...    - function balanceOf(address _owner)  contract ERC20 is ERC20Basic    - function allowance(address owner, add ...    - function transferFrom(address from, a ...    - function approve(address spender, uin ...  contract StandardToken is BasicTok ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract Ownable    - function Ownable()    - function transferOwnership(address ne ...  contract LinkToken is StandardToke ... *    - function mint(address _spender, uint ...

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/**
 *Submitted for verification at Etherscan.io on 2017-06-29
*/

pragma solidity ^0.4.8;

/// @title Link Token. This Token will remain the cornerstone of the entire organization. It will have an Ethereum address and from the moment that address is publish until the end, it will remain the same, and should. The Token should be as simple as it possibly can be and should not be able to terminate. It's state remains so that those who control their Tokens will continue to do so.
/// @author Riaan F Venter~ RFVenter~ <[email protected]>


/*
 * ERC20Basic
 * Simpler version of ERC20 interface
 * see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}

/**
 * Math operations with safety checks
 */
library SafeMath {
  function mul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function div(uint a, uint b) internal returns (uint) {
    assert(b > 0);
    uint c = a / b;
    assert(a == b * c + a % b);
    return c;
  }

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

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

  function max64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a >= b ? a : b;
  }

  function min64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a < b ? a : b;
  }

  function max256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a >= b ? a : b;
  }

  function min256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a < b ? a : b;
  }

  function assert(bool assertion) internal {
    if (!assertion) {
      throw;
    }
  }
}


/*
 * Basic token
 * Basic version of StandardToken, with no allowances
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint;

  mapping(address => uint) balances;

  /*
   * Fix for the ERC20 short address attack  
   */
  modifier onlyPayloadSize(uint size) {
     if(msg.data.length < size + 4) {
       throw;
     }
     _;
  }

  function transfer(address _to, uint _value) onlyPayloadSize(2 * 32) {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
  }

  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }
  
}


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


/**
 * Standard ERC20 token
 *
 * https://github.com/ethereum/EIPs/issues/20
 * Based on code by FirstBlood:
 * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is BasicToken, ERC20 {

  mapping (address => mapping (address => uint)) allowed;

  function transferFrom(address _from, address _to, uint _value) {
    var _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // if (_value > _allowance) throw;

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

  function approve(address _spender, uint _value) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }

  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }
}

/*
 * Ownable
 *
 * Base contract with an owner.
 * Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
 */
contract Ownable {
  address public owner;

  function Ownable() {
    owner = msg.sender;
  }

  modifier onlyOwner() {
    if (msg.sender != owner) {
      throw;
    }
    _;
  }

  function transferOwnership(address newOwner) onlyOwner {
    if (newOwner != address(0)) {
      owner = newOwner;
    }
  }

}


contract LinkToken is StandardToken, Ownable {

    string public   name =           "Link Platform";    // Name of the Token
    string public   symbol =         "LNK";              // ERC20 compliant Token code
    uint public     decimals =       18;                 // Token has 18 digit precision
    uint public     totalSupply;    			         // Total supply

    function mint(address _spender, uint _value)
        onlyOwner {

        balances[_spender] += _value;
        totalSupply += _value;
    }
}

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