Contract Overview
Balance: 0 Ether
Ether Value: $0
Transactions: 338 txns
 Latest 25 txns From a total of 338 Transactions

TxHash Age From To Value [TxFee]
0x589ab765bfedd9bed84fc8934b9a4b3e830fca98df7fd005c20b94bd0213f2a9144 days 3 hrs ago0xa934383ccfb2e5e2bb2c729b0678d29c30d0371b  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.20829511 Ether0.000566
0x966dac28f339a7913081f759c4a78d38fb20e9a1eb727f08c86a7f73e38fe728144 days 3 hrs ago0xa934383ccfb2e5e2bb2c729b0678d29c30d0371b  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.20886111 Ether0.000566
0x26d98a7770c4024b5ca419506a68d7c64af5475442ec96b49c7e469fddca934d144 days 16 hrs ago0xf87cab9d9eb907bb5aca3277f62e8e5fa3113506  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.1 Ether0.000566
0xd6687667ee1121de5a42f8916ac236314ef405cff807c173f996f2d50a906fb8144 days 16 hrs ago0xf87cab9d9eb907bb5aca3277f62e8e5fa3113506  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.1 Ether0.000566
0xc46ffef27d27f9ebd6fa4d6834e9645f744f0cfecbb264ceef936b720d451740145 days 5 hrs ago0x6aa5a27132f2a828350e06fb20e04e7e5e205e9a  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0 Ether0.002042272
0xe5b905f2aebfaee563fdc0a9aec7aa420711a18b1b716d437a3eed0117901f4a145 days 21 hrs ago0xda18ba4f0921cfba17e42c359e24b3b724f3dc55  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.148 Ether0.00111569
0xfa2e9fbc590b1573228cad7ea0a92417eb8cc7839d31dce4ac117b14574a28c5145 days 22 hrs ago0x0c08253ade47166cafdb5e81a95b9fdff953a95e  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e3 Ether0.00096697
0xddfcd203af4f7c792e9641d7817afa062791c88c941c58a319e948547e14aa3e145 days 22 hrs ago0xc0a2f67c7e36f004dfada51e896b196be8a485e4  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.02 Ether0.00111697
0x04102581da7befc60140f7795f372224358413137f798857708835c29f6cd578145 days 22 hrs ago0xb2a87a5a283062c53efd1b665342d8767842d7dd  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e1.5 Ether0.00081697
0xed502f8bf8c3b10bea88ccc07f20db0b285608f5e28bd504bb22e68412334b76145 days 23 hrs ago0x0d28c753c5a649f23ba01277cde6389ecc225048  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.0266301630625 Ether0.00081697
0xc96534b29cf1c3a5295ff97f66cc361493ebcb87e92af1335e931b4464f95125146 days 1 hr ago0x2637e19650ef2b1230591daa4725f3834127b8b6  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.1 Ether0.00081569
0x36179b7771d4d134412caa4be3f817eaf07fadb295c31a3a2d7d6aa87ddc6752146 days 1 hr ago0x2637e19650ef2b1230591daa4725f3834127b8b6  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.001 Ether0.00111569
0xeedcd082cf3a123ed62b10c982f9a07f05345d0aa2b196c2c4d53f4ca48248b5146 days 3 hrs ago0xce042557e0444a45b56f26022abd81f90dde2e9e  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.70066195 Ether0.00081505
0xdb4719764011a4a5734e19437785690903ac353c72dea3a2da85e200f14ad0dd146 days 3 hrs ago0xce042557e0444a45b56f26022abd81f90dde2e9e  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.088 Ether0.00111505
0x2e7915a0a4ed0f63bb4ea161e24c6218ad2c3a3df4478b12b9235923de6ee9c3146 days 4 hrs ago0xdbb71a9d3fb47a21d8e51872999eda2bc6421631  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e2.99 Ether0.00081697
0x12967982edfc0149ee0d6db9fdc71b3e892b8837e55b18fceda08fdf4ee35f7c146 days 6 hrs ago0xb701a49600079d74063abd9e663e93b0a1982d2b  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e1.7 Ether0.00111633
0xd17dd322c004b4eb65e631a896663836437afe046f8413c67b5c9d0e55e8eea2146 days 7 hrs ago0x101fbfa8b451c2603617b984a5580d4a13cde649  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e2.996 Ether0.00111569
0xdbb6e04f5b317494d53efb2f1c87ad027c78e47051cab6642239d60464705f89146 days 10 hrs ago0xa98b9f24efe2ddbc78c8e10df0521e967ce8c12b  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e3 Ether0.00081697
0xd8744227156fe3928b02234fbd087c0edd014a3a6c0c45ce8fb07f4073c2240f146 days 10 hrs ago0xace2b28b0c3c9b1b901a93c9734e0794b8ab6ac4  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.0333333333333 Ether0.00081569
0xba5a3f113e53454b6a811be6b4e523a899698a0cb5b6cf435e582c6b92988ab4146 days 10 hrs ago0xd267e4566429c1d3c303eb1ad96e05f91521ea91  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0 Ether0.00074803
0x0fa2c12124c094c90425786fbde9e9286e00090d0f07a871a147a41ae402765a146 days 11 hrs ago0x9a25b8d08d455200bc131d4ce6b29a32e2627064  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.025 Ether0.00081633
0x2b072296a9b16f02a6402bb78e86b9103ecf2683d323f083794a8218a582f80b146 days 11 hrs ago0x9a25b8d08d455200bc131d4ce6b29a32e2627064  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.2 Ether0.00096633
0xc5ac07fad0cf119f6fb14e7356aada81d7f33cd5cd142c1247c6151aefa037e9146 days 13 hrs ago0x0e0d92b68104c58bfc840cb63d870d917342b8fd  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.5 Ether0.00111697
0xb16c6f96816b3c0d201f8c592427bedf95136af979fe742e80959103a2436b0f146 days 17 hrs ago0x6c51b5b516321e0f7bed2575395ff2c75ad1c8bb  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.18 Ether0.00096569
0x19fba62681e9c4ea3d971d98d952e823405134fd85aad007858ff521ec58b404146 days 18 hrs ago0xb2d8bcef1e88fb17c3f18fa706a4a8b8a867303f  IN   0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0.255 Ether0.00096569
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 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click Here To View More View All
ParentTxHash Block Age From To Value
0xe5b905f2aebfaee563fdc0a9aec7aa420711a18b1b716d437a3eed0117901f4a5681818145 days 21 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.148 Ether
0xfa2e9fbc590b1573228cad7ea0a92417eb8cc7839d31dce4ac117b14574a28c55681516145 days 22 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102843 Ether
0xddfcd203af4f7c792e9641d7817afa062791c88c941c58a319e948547e14aa3e5681505145 days 22 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.02 Ether
0x04102581da7befc60140f7795f372224358413137f798857708835c29f6cd5785681449145 days 22 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102841.5 Ether
0xed502f8bf8c3b10bea88ccc07f20db0b285608f5e28bd504bb22e68412334b765681209145 days 23 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.0266301630625 Ether
0xc96534b29cf1c3a5295ff97f66cc361493ebcb87e92af1335e931b4464f951255680861146 days 1 hr ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.1 Ether
0x36179b7771d4d134412caa4be3f817eaf07fadb295c31a3a2d7d6aa87ddc67525680740146 days 1 hr ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.001 Ether
0xeedcd082cf3a123ed62b10c982f9a07f05345d0aa2b196c2c4d53f4ca48248b55680424146 days 3 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.70066195 Ether
0xdb4719764011a4a5734e19437785690903ac353c72dea3a2da85e200f14ad0dd5680358146 days 3 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.088 Ether
0x2e7915a0a4ed0f63bb4ea161e24c6218ad2c3a3df4478b12b9235923de6ee9c35680149146 days 4 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102842.99 Ether
0x12967982edfc0149ee0d6db9fdc71b3e892b8837e55b18fceda08fdf4ee35f7c5679684146 days 6 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102841.7 Ether
0xd17dd322c004b4eb65e631a896663836437afe046f8413c67b5c9d0e55e8eea25679476146 days 7 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102842.996 Ether
0xdbb6e04f5b317494d53efb2f1c87ad027c78e47051cab6642239d60464705f895678683146 days 10 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102843 Ether
0xd8744227156fe3928b02234fbd087c0edd014a3a6c0c45ce8fb07f4073c2240f5678656146 days 10 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.0333333333333 Ether
0x0fa2c12124c094c90425786fbde9e9286e00090d0f07a871a147a41ae402765a5678393146 days 11 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.025 Ether
0x2b072296a9b16f02a6402bb78e86b9103ecf2683d323f083794a8218a582f80b5678323146 days 11 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.2 Ether
0xc5ac07fad0cf119f6fb14e7356aada81d7f33cd5cd142c1247c6151aefa037e95677909146 days 13 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.5 Ether
0xb16c6f96816b3c0d201f8c592427bedf95136af979fe742e80959103a2436b0f5677029146 days 17 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.18 Ether
0x19fba62681e9c4ea3d971d98d952e823405134fd85aad007858ff521ec58b4045676674146 days 18 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.255 Ether
0x37f0c8ff271130e36fe64d42e4ce1d6390ba4396e4247051b9eb58f138c35aa05676245146 days 20 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.1 Ether
0x6db9aac0bb1629765d0345fcf249f09c8d41d4b559a693f3d8f717d6e4d565f75675254147 days 52 mins ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.200934 Ether
0x1fd4a86c1779ae3b8e61f58513bd0f579d57a5564768eaaea41ecfa4cce472a85675146147 days 1 hr ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102841 Ether
0x340383ffb37cd546dd24738659c1a4f6e5d129eba1713c63d530cf4a58468e845673633147 days 7 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102841.7 Ether
0x70d7815444c91539f87586669f3cdb8fe26bdb7bdcabd1930cb269a2b533686a5673341147 days 9 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102840.05 Ether
0xa8daeaa3d879738890a393008ad5a4e0cb34ef57d34a47f4428f45ef820524205673314147 days 9 hrs ago0x3f45fd00781028191082cc8a28ab9c178bbe0b7e0xf5a4cd4e156170281880b645c2c36e4da56102841.07001009 Ether
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Exact Match)
Contract Name: ORSTokenSale
Compiler Text: v0.4.23+commit.124ca40d
Optimization Enabled: No
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

pragma solidity 0.4.23;

// File: eidoo-icoengine/contracts/ICOEngineInterface.sol

contract ICOEngineInterface {

    // false if the ico is not started, true if the ico is started and running, true if the ico is completed
    function started() public view returns(bool);

    // false if the ico is not started, false if the ico is started and running, true if the ico is completed
    function ended() public view returns(bool);

    // time stamp of the starting time of the ico, must return 0 if it depends on the block number
    function startTime() public view returns(uint);

    // time stamp of the ending time of the ico, must retrun 0 if it depends on the block number
    function endTime() public view returns(uint);

    // Optional function, can be implemented in place of startTime
    // Returns the starting block number of the ico, must return 0 if it depends on the time stamp
    // function startBlock() public view returns(uint);

    // Optional function, can be implemented in place of endTime
    // Returns theending block number of the ico, must retrun 0 if it depends on the time stamp
    // function endBlock() public view returns(uint);

    // returns the total number of the tokens available for the sale, must not change when the ico is started
    function totalTokens() public view returns(uint);

    // returns the number of the tokens available for the ico. At the moment that the ico starts it must be equal to totalTokens(),
    // then it will decrease. It is used to calculate the percentage of sold tokens as remainingTokens() / totalTokens()
    function remainingTokens() public view returns(uint);

    // return the price as number of tokens released for each ether
    function price() public view returns(uint);
}

// File: zeppelin-solidity/contracts/math/SafeMath.sol

/**
 * @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 c) {
    if (a == 0) {
      return 0;
    }
    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 a / b;
  }

  /**
  * @dev Subtracts 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 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

// File: zeppelin-solidity/contracts/ownership/Ownable.sol

/**
 * @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) public onlyOwner {
    require(newOwner != address(0));
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}

// File: contracts/KYCBase.sol

// Abstract base contract
contract KYCBase {
    using SafeMath for uint256;

    mapping (address => bool) public isKycSigner;
    mapping (uint64 => uint256) public alreadyPayed;

    event KycVerified(address indexed signer, address buyerAddress, uint64 buyerId, uint maxAmount);

    function KYCBase(address [] kycSigners) internal {
        for (uint i = 0; i < kycSigners.length; i++) {
            isKycSigner[kycSigners[i]] = true;
        }
    }

    // Must be implemented in descending contract to assign tokens to the buyers. Called after the KYC verification is passed
    function releaseTokensTo(address buyer, address signer) internal returns(bool);

    // This method can be overridden to enable some sender to buy token for a different address
    function senderAllowedFor(address buyer)
        internal view returns(bool)
    {
        return buyer == msg.sender;
    }

    function buyTokensFor(address buyerAddress, uint64 buyerId, uint maxAmount, uint8 v, bytes32 r, bytes32 s)
        public payable returns (bool)
    {
        require(senderAllowedFor(buyerAddress));
        return buyImplementation(buyerAddress, buyerId, maxAmount, v, r, s);
    }

    function buyTokens(uint64 buyerId, uint maxAmount, uint8 v, bytes32 r, bytes32 s)
        public payable returns (bool)
    {
        return buyImplementation(msg.sender, buyerId, maxAmount, v, r, s);
    }

    function buyImplementation(address buyerAddress, uint64 buyerId, uint maxAmount, uint8 v, bytes32 r, bytes32 s)
        private returns (bool)
    {
        // check the signature
        bytes32 hash = sha256("Eidoo icoengine authorization", this, buyerAddress, buyerId, maxAmount);
        address signer = ecrecover(hash, v, r, s);
        if (!isKycSigner[signer]) {
            revert();
        } else {
            uint256 totalPayed = alreadyPayed[buyerId].add(msg.value);
            require(totalPayed <= maxAmount);
            alreadyPayed[buyerId] = totalPayed;
            KycVerified(signer, buyerAddress, buyerId, maxAmount);
            return releaseTokensTo(buyerAddress, signer);
        }
    }

    // No payable fallback function, the tokens must be buyed using the functions buyTokens and buyTokensFor
    function () public {
        revert();
    }
}

// File: zeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol

/**
 * @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);
}

// File: zeppelin-solidity/contracts/token/ERC20/BasicToken.sol

/**
 * @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]);

    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) {
    return balances[_owner];
  }

}

// File: zeppelin-solidity/contracts/token/ERC20/ERC20.sol

/**
 * @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);
}

// File: zeppelin-solidity/contracts/token/ERC20/StandardToken.sol

/**
 * @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);
    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) {
    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;
  }

}

// File: zeppelin-solidity/contracts/token/ERC20/MintableToken.sol

/**
 * @title Mintable token
 * @dev Simple ERC20 Token example, with mintable token creation
 * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
 */
contract MintableToken is StandardToken, Ownable {
  event Mint(address indexed to, uint256 amount);
  event MintFinished();

  bool public mintingFinished = false;


  modifier canMint() {
    require(!mintingFinished);
    _;
  }

  /**
   * @dev Function to mint tokens
   * @param _to The address that will receive the minted tokens.
   * @param _amount The amount of tokens to mint.
   * @return A boolean that indicates if the operation was successful.
   */
  function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
    totalSupply_ = totalSupply_.add(_amount);
    balances[_to] = balances[_to].add(_amount);
    emit Mint(_to, _amount);
    emit Transfer(address(0), _to, _amount);
    return true;
  }

  /**
   * @dev Function to stop minting new tokens.
   * @return True if the operation was successful.
   */
  function finishMinting() onlyOwner canMint public returns (bool) {
    mintingFinished = true;
    emit MintFinished();
    return true;
  }
}

// File: zeppelin-solidity/contracts/token/ERC20/CappedToken.sol

/**
 * @title Capped token
 * @dev Mintable token with a token cap.
 */
contract CappedToken is MintableToken {

  uint256 public cap;

  function CappedToken(uint256 _cap) public {
    require(_cap > 0);
    cap = _cap;
  }

  /**
   * @dev Function to mint tokens
   * @param _to The address that will receive the minted tokens.
   * @param _amount The amount of tokens to mint.
   * @return A boolean that indicates if the operation was successful.
   */
  function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
    require(totalSupply_.add(_amount) <= cap);

    return super.mint(_to, _amount);
  }

}

// File: zeppelin-solidity/contracts/lifecycle/Pausable.sol

/**
 * @title Pausable
 * @dev Base contract which allows children to implement an emergency stop mechanism.
 */
contract Pausable is Ownable {
  event Pause();
  event Unpause();

  bool public paused = false;


  /**
   * @dev Modifier to make a function callable only when the contract is not paused.
   */
  modifier whenNotPaused() {
    require(!paused);
    _;
  }

  /**
   * @dev Modifier to make a function callable only when the contract is paused.
   */
  modifier whenPaused() {
    require(paused);
    _;
  }

  /**
   * @dev called by the owner to pause, triggers stopped state
   */
  function pause() onlyOwner whenNotPaused public {
    paused = true;
    emit Pause();
  }

  /**
   * @dev called by the owner to unpause, returns to normal state
   */
  function unpause() onlyOwner whenPaused public {
    paused = false;
    emit Unpause();
  }
}

// File: zeppelin-solidity/contracts/token/ERC20/PausableToken.sol

/**
 * @title Pausable token
 * @dev StandardToken modified with pausable transfers.
 **/
contract PausableToken is StandardToken, Pausable {

  function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
    return super.transfer(_to, _value);
  }

  function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
    return super.transferFrom(_from, _to, _value);
  }

  function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) {
    return super.approve(_spender, _value);
  }

  function increaseApproval(address _spender, uint _addedValue) public whenNotPaused returns (bool success) {
    return super.increaseApproval(_spender, _addedValue);
  }

  function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused returns (bool success) {
    return super.decreaseApproval(_spender, _subtractedValue);
  }
}

// File: zeppelin-solidity/contracts/token/ERC20/BurnableToken.sol

/**
 * @title Burnable Token
 * @dev Token that can be irreversibly burned (destroyed).
 */
contract BurnableToken is BasicToken {

  event Burn(address indexed burner, uint256 value);

  /**
   * @dev Burns a specific amount of tokens.
   * @param _value The amount of token to be burned.
   */
  function burn(uint256 _value) public {
    _burn(msg.sender, _value);
  }

  function _burn(address _who, uint256 _value) internal {
    require(_value <= balances[_who]);
    // no need to require value <= totalSupply, since that would imply the
    // sender's balance is greater than the totalSupply, which *should* be an assertion failure

    balances[_who] = balances[_who].sub(_value);
    totalSupply_ = totalSupply_.sub(_value);
    emit Burn(_who, _value);
    emit Transfer(_who, address(0), _value);
  }
}

// File: zeppelin-solidity/contracts/token/ERC20/StandardBurnableToken.sol

/**
 * @title Standard Burnable Token
 * @dev Adds burnFrom method to ERC20 implementations
 */
contract StandardBurnableToken is BurnableToken, StandardToken {

  /**
   * @dev Burns a specific amount of tokens from the target address and decrements allowance
   * @param _from address The address which you want to send tokens from
   * @param _value uint256 The amount of token to be burned
   */
  function burnFrom(address _from, uint256 _value) public {
    require(_value <= allowed[_from][msg.sender]);
    // Should https://github.com/OpenZeppelin/zeppelin-solidity/issues/707 be accepted,
    // this function needs to emit an event with the updated approval.
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    _burn(_from, _value);
  }
}

// File: contracts/ORSToken.sol

/// @title ORSToken
/// @author Sicos et al.
contract ORSToken is CappedToken, StandardBurnableToken, PausableToken {

    string public name = "ORS Token";
    string public symbol = "ORS";
    uint8 public decimals = 18;

    /// @dev Constructor
    /// @param _cap Maximum number of integral token units; total supply must never exceed this limit
    constructor(uint _cap) public CappedToken(_cap) {
        pause();  // Disable token trade
    }

}

// File: contracts/ORSTokenSale.sol

/// @title ORSTokenSale
/// @author Sicos et al.
contract ORSTokenSale is KYCBase, ICOEngineInterface, Ownable {

    using SafeMath for uint;

    // Maximum token amounts of each pool
    // Note: There were 218054209 token sold in PreSale
    // Note: 4193635 Bonus token will be issued to preSale investors
    // Note: PRESALE_CAP = 218054209 PreSale token + 4193635 PreSale Bonus token
    uint constant public PRESALE_CAP = 222247844e18;          // 222,247,844 e18
    uint constant public MAINSALE_CAP = 281945791e18;         // 281,945,791 e18
    // Note: BONUS_CAP should be at least 5% of MAINSALE_CAP
    // Note: BONUS_CAP = 64460000 BONUS token  - 4193635 PreSale Bonus token
    uint constant public BONUS_CAP = 60266365e18;             //  60,266,365 e18

    // Granted token shares that will be minted upon finalization
    uint constant public COMPANY_SHARE = 127206667e18;        // 127,206,667 e18
    uint constant public TEAM_SHARE = 83333333e18;            //  83,333,333 e18
    uint constant public ADVISORS_SHARE = 58333333e18;        //  58,333,333 e18

    // Remaining token amounts of each pool
    uint public presaleRemaining = PRESALE_CAP;
    uint public mainsaleRemaining = MAINSALE_CAP;
    uint public bonusRemaining = BONUS_CAP;

    // Beneficiaries of granted token shares
    address public companyWallet;
    address public advisorsWallet;
    address public bountyWallet;

    ORSToken public token;

    // Integral token units (10^-18 tokens) per wei
    uint public rate;

    // Mainsale period
    uint public openingTime;
    uint public closingTime;

    // Ethereum address where invested funds will be transferred to
    address public wallet;

    // Purchases signed via Eidoo's platform will receive bonus tokens
    address public eidooSigner;

    bool public isFinalized = false;

    /// @dev Log entry on rate changed
    /// @param newRate New rate in integral token units per wei
    event RateChanged(uint newRate);

    /// @dev Log entry on token purchased
    /// @param buyer Ethereum address of token purchaser
    /// @param value Worth in wei of purchased token amount
    /// @param tokens Number of integral token units
    event TokenPurchased(address indexed buyer, uint value, uint tokens);

    /// @dev Log entry on buyer refunded upon token purchase
    /// @param buyer Ethereum address of token purchaser
    /// @param value Worth of refund of wei
    event BuyerRefunded(address indexed buyer, uint value);

    /// @dev Log entry on finalized
    event Finalized();

    /// @dev Constructor
    /// @param _token An ORSToken
    /// @param _rate Rate in integral token units per wei
    /// @param _openingTime Block (Unix) timestamp of mainsale start time
    /// @param _closingTime Block (Unix) timestamp of mainsale latest end time
    /// @param _wallet Ethereum account who will receive sent ether upon token purchase during mainsale
    /// @param _companyWallet Ethereum account of company who will receive company share upon finalization
    /// @param _advisorsWallet Ethereum account of advisors who will receive advisors share upon finalization
    /// @param _bountyWallet Ethereum account of a wallet that will receive remaining bonus upon finalization
    /// @param _kycSigners List of KYC signers' Ethereum addresses
    constructor(
        ORSToken _token,
        uint _rate,
        uint _openingTime,
        uint _closingTime,
        address _wallet,
        address _companyWallet,
        address _advisorsWallet,
        address _bountyWallet,
        address[] _kycSigners
    )
        public
        KYCBase(_kycSigners)
    {
        require(_token != address(0x0));
        require(_token.cap() == PRESALE_CAP + MAINSALE_CAP + BONUS_CAP + COMPANY_SHARE + TEAM_SHARE + ADVISORS_SHARE);
        require(_rate > 0);
        require(_openingTime > now && _closingTime > _openingTime);
        require(_wallet != address(0x0));
        require(_companyWallet != address(0x0) && _advisorsWallet != address(0x0) && _bountyWallet != address(0x0));
        require(_kycSigners.length >= 2);

        token = _token;
        rate = _rate;
        openingTime = _openingTime;
        closingTime = _closingTime;
        wallet = _wallet;
        companyWallet = _companyWallet;
        advisorsWallet = _advisorsWallet;
        bountyWallet = _bountyWallet;

        eidooSigner = _kycSigners[0];
    }

    /// @dev Set rate, i.e. adjust to changes of fiat/ether exchange rates
    /// @param newRate Rate in integral token units per wei
    function setRate(uint newRate) public onlyOwner {
        require(newRate > 0);

        if (newRate != rate) {
            rate = newRate;

            emit RateChanged(newRate);
        }
    }

    /// @dev Distribute presold tokens and bonus tokens to investors
    /// @param investors List of investors' Ethereum addresses
    /// @param tokens List of integral token amounts each investors will receive
    function distributePresale(address[] investors, uint[] tokens) public onlyOwner {
        require(!isFinalized);
        require(tokens.length == investors.length);

        for (uint i = 0; i < investors.length; ++i) {
            presaleRemaining = presaleRemaining.sub(tokens[i]);

            token.mint(investors[i], tokens[i]);
        }
    }

    /// @dev Finalize, i.e. end token minting phase and enable token trading
    function finalize() public onlyOwner {
        require(ended() && !isFinalized);
        require(presaleRemaining == 0);

        // Distribute granted token shares
        token.mint(companyWallet, COMPANY_SHARE + TEAM_SHARE);
        token.mint(advisorsWallet, ADVISORS_SHARE);

        // There shouldn't be any remaining presale tokens
        // Remaining mainsale tokens will be lost (i.e. not minted)
        // Remaining bonus tokens will be minted for the benefit of bounty wallet
        if (bonusRemaining > 0) {
            token.mint(bountyWallet, bonusRemaining);
            bonusRemaining = 0;
        }

        // Enable token trade
        token.finishMinting();
        token.unpause();

        isFinalized = true;

        emit Finalized();
    }

    // false if the ico is not started, true if the ico is started and running, true if the ico is completed
    /// @dev Started (as required by Eidoo's ICOEngineInterface)
    /// @return True iff mainsale start has passed
    function started() public view returns (bool) {
        return now >= openingTime;
    }

    // false if the ico is not started, false if the ico is started and running, true if the ico is completed
    /// @dev Ended (as required by Eidoo's ICOEngineInterface)
    /// @return True iff mainsale is finished
    function ended() public view returns (bool) {
        // Note: Even though we allow token holders to burn their tokens immediately after purchase, this won't
        //       affect the early end via "sold out" as mainsaleRemaining is independent of token.totalSupply.
        return now > closingTime || mainsaleRemaining == 0;
    }

    // time stamp of the starting time of the ico, must return 0 if it depends on the block number
    /// @dev Start time (as required by Eidoo's ICOEngineInterface)
    /// @return Block (Unix) timestamp of mainsale start time
    function startTime() public view returns (uint) {
        return openingTime;
    }

    // time stamp of the ending time of the ico, must retrun 0 if it depends on the block number
    /// @dev End time (as required by Eidoo's ICOEngineInterface)
    /// @return Block (Unix) timestamp of mainsale latest end time
    function endTime() public view returns (uint) {
        return closingTime;
    }

    // returns the total number of the tokens available for the sale, must not change when the ico is started
    /// @dev Total amount of tokens initially available for purchase during mainsale (excluding bonus tokens)
    /// @return Integral token units
    function totalTokens() public view returns (uint) {
        return MAINSALE_CAP;
    }

    // returns the number of the tokens available for the ico. At the moment that the ico starts it must be
    // equal to totalTokens(), then it will decrease. It is used to calculate the percentage of sold tokens as
    // remainingTokens() / totalTokens()
    /// @dev Remaining amount of tokens available for purchase during mainsale (excluding bonus tokens)
    /// @return Integral token units
    function remainingTokens() public view returns (uint) {
        return mainsaleRemaining;
    }

    // return the price as number of tokens released for each ether
    /// @dev Price (as required by Eidoo's ICOEngineInterface); actually the inverse of a "price"
    /// @return Rate in integral token units per wei
    function price() public view returns (uint) {
        return rate;
    }

    /// @dev Release purchased tokens to buyers during mainsale (as required by Eidoo's ICOEngineInterface)
    /// @param buyer Ethereum address of purchaser
    /// @param signer Ethereum address of signer
    /// @return Always true, failures will be indicated by transaction reversal
    function releaseTokensTo(address buyer, address signer) internal returns (bool) {
        require(started() && !ended());

        uint value = msg.value;
        uint refund = 0;

        uint tokens = value.mul(rate);
        uint bonus = 0;

        // (Last) buyer whose purchase would exceed available mainsale tokens will be partially refunded
        if (tokens > mainsaleRemaining) {
            uint valueOfRemaining = mainsaleRemaining.div(rate);

            refund = value.sub(valueOfRemaining);
            value = valueOfRemaining;
            tokens = mainsaleRemaining;
            // Note:
            // To be 100% accurate the buyer should receive only a token amount that corresponds to valueOfRemaining,
            // i.e. tokens = valueOfRemaining.mul(rate), because of mainsaleRemaining may not be a multiple of rate
            // (due to regular adaption to the ether/fiat exchange rate).
            // Nevertheless, we deliver all mainsaleRemaining tokens as the worth of these additional tokens at time
            // of purchase is less than a wei and the gas costs of a correct solution, i.e. calculate value * rate
            // again, would exceed this by several orders of magnitude.
        }

        // Purchases signed via Eidoo's platform will receive additional 5% bonus tokens
        if (signer == eidooSigner) {
            bonus = tokens.div(20);
        }

        mainsaleRemaining = mainsaleRemaining.sub(tokens);
        bonusRemaining = bonusRemaining.sub(bonus);

        token.mint(buyer, tokens.add(bonus));
        wallet.transfer(value);
        if (refund > 0) {
            buyer.transfer(refund);

            emit BuyerRefunded(buyer, refund);
        }

        emit TokenPurchased(buyer, value, tokens.add(bonus));

        return true;
    }

}

    Contract ABI  
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:"buyTokens","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"mainsaleRemaining","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"bountyWallet","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_token","type":"address"},{"name":"_rate","type":"uint256"},{"name":"_openingTime","type":"uint256"},{"name":"_closingTime","type":"uint256"},{"name":"_wallet","type":"address"},{"name":"_companyWallet","type":"address"},{"name":"_advisorsWallet","type":"address"},{"name":"_bountyWallet","type":"address"},{"name":"_kycSigners","type":"address[]"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":false,"stateMutability":"nonpayable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newRate","type":"uint256"}],"name":"RateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"buyer","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"TokenPurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"buyer","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"BuyerRefunded","type":"event"},{"anonymous":false,"inputs":[],"name":"Finalized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"signer","type":"address"},{"indexed":false,"name":"buyerAddress","type":"address"},{"indexed":false,"name":"buyerId","type":"uint64"},{"indexed":false,"name":"maxAmount","type":"uint256"}],"name":"KycVerified","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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    Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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

-----Encoded View---------------
12 Constructor Arguments found :
Arg [0] : 000000000000000000000000ac2e58a06e6265f1cf5084ee58da68e5d75b49ca
Arg [1] : 0000000000000000000000000000000000000000000000000000000000002c9c
Arg [2] : 000000000000000000000000000000000000000000000000000000005af933f0
Arg [3] : 000000000000000000000000000000000000000000000000000000005b09cad0
Arg [4] : 000000000000000000000000f5a4cd4e156170281880b645c2c36e4da5610284
Arg [5] : 000000000000000000000000f83547c41dbf888da26d6e3f4a8c0dba30134672
Arg [6] : 00000000000000000000000043c954e971db80573861baf0bdfcac1f69f8c0d5
Arg [7] : 0000000000000000000000006265d03b984c3e1378e42b132d2d76f5a1ccb9ff
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [10] : 000000000000000000000000dd5ecefcaa0cb5d75f7b72dc9d2ce446d6d00520
Arg [11] : 0000000000000000000000004e315e5de2abbf7b745d9628ee60e4355c0fab86


   Swarm Source:
bzzr://618745af11b7f97aba5980c5e3a2a125aeea418c923e8435f665acc0442f050d

 

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