Contract Overview | Loopring
Balance: 0 Ether
Ether Value: $0
Transactions: 282425 txns
Token Tracker: Loopring (LRC)
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Contract Creator: 0xd2c4070a3563b0adfef2e6e0a604017f1c2ac3dfat txn 0x0f09ce492bf004a2e07ea6f306431ff63d972c860c975d4baefc3aeb215db965
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 Latest 25 txns From a total of 282425 Transactions

TxHash Age From To Value [TxFee]
0x1852445acf4f5eda550030e3a3d951fb0daa95aafca2cf5f1f3775f7fd4304f73 hrs 13 mins agoBinance_3  IN   Loopring0 Ether0.00155553
0xb051a8822c63691718186ac0a1b6bc999f5561253c5327129233e741bc0844163 hrs 13 mins ago0xebfa9affd6f3d8d42ad5d53d3711640c08373ebe  IN   Loopring0 Ether0.0001706859
0x63ef6d830352b2a9aba51eaa96e80e261e743c7d9ea4dfb7805af04ce367b26e5 hrs 2 mins ago0xba405a54361eaec66d2735f6cfc816cb10be550c  IN   Loopring0 Ether0.00043702
0xb46b994a6d752f57b5e40f1f117148f455a6d6610072789c25aa0510c20519965 hrs 13 mins ago0x6767a3d5440a2f33e9328d7f832436f10c38cf9d  IN   Loopring0 Ether0.00043958
0x7a816e88f94b81ba09fbfa7a6b01067f82c40b3a51b024198147c872285c015d5 hrs 16 mins ago0x905c725b0a212d983db834309f1ba086847cc2ee  IN   Loopring0 Ether0.002247911
0xd52a8363e423e4c205c338e837b991b9fc582c7f4deba47117a153fa00f54a415 hrs 35 mins agoCoinExchange.io  IN   Loopring0 Ether0.000415832
0x2a49dd8eba285f32f192952e796118fdce1b6e867c2ad0ee6487c842b0189c5a6 hrs 26 mins ago0x7cea819ba5d13547c4bbcf1a5068e331915283cb  IN   Loopring0 Ether0.000087920395
0x7ee2f728986ec40d1f31c1d18d3d543b906f81bea8a6986fec5f91460ece6a0d7 hrs 10 mins agoBinance_3  IN   Loopring0 Ether0.00155745
0x128a02a6533e7cbc1eb4c12b0d935190ae03a29737c35ac94571bf767a3121d38 hrs 3 mins ago0x5220daef72f6eef88f8baaafc5dd0b289d7431df  IN   Loopring0 Ether0.0004383
0xfe43fd712169c3ce9aad8ebb98a184f34f939b019d5197ea40548f7709152cbd8 hrs 23 mins agoBitfinex_4  IN   Loopring0 Ether0.0010383
0x0c5c39e6b51593834c7f47fa647d62d8b80953da3154f9776ae1a3a574f5f5df8 hrs 55 mins agoBinance_2  IN   Loopring0 Ether0.00155745
0xd698180aa7c13421a0375b437136c8986f772b125252f9b544e4418e45e6aa029 hrs 23 mins ago0xeab3bcbf98d03c24123edeceb2ee9a3d7d0d9367  IN   Loopring0 Ether0.00043702
0x34f8ab23d40281466d722ab69b46f630601bb92b9e9b206bd96765dd1af4f6809 hrs 51 mins ago0x340269e1160d934eb360c3a6f51c2671101c673e  IN   Loopring0 Ether0.000773871
0x35902ca31bb37a9d3754bcd67b6498fcaa8dcc0d00c6ed8e0e7d9bac4084f91e9 hrs 52 mins ago0x2039619b09a1a65738f1da9c5898dd990b8647d6  IN   Loopring0 Ether0.0002916285
0x624054892761638e89c146fa1a7f5364d7327915557d082fccdc63e1c825302c9 hrs 58 mins ago0x588bdd92e86cb8a38715385fce9f170c0047f85e  IN   Loopring0 Ether0.000257957
0x8b6ac01f94371026967e9bb824e0360ce63e952defa7e644e33823ee59957a9610 hrs 5 mins ago0xa34454a0e714b2448d80d1b2ceeaf09ab8297c47  IN   Loopring0 Ether0.00051851
0x1bf7dae0ee176f51681b991b6fcdd88160bb5f5ec894981d62aba5ba1393d02c10 hrs 10 mins ago0x15dd164a864c5b11dc983688a12070137a0aba0e  IN   Loopring0 Ether0.000414808
0xac931d64394ffc516c0694d2bdbd20a3d9cf7f96b37b51787d3db5184156435a10 hrs 34 mins ago0x340269e1160d934eb360c3a6f51c2671101c673e  IN   Loopring0 Ether0.000973644
0x4e21e201c451e7e072eaffea95ab9d0362bfd762f6849b369da237d09bafadb510 hrs 52 mins ago0x5f8f69dd829f07034bf1a8b5e17709db4d6e5a6d  IN   Loopring0 Ether0.000291972
0xe0889910301a14be0697e7fd509b691c34adc8c04e2dd20221b04d48bb74323810 hrs 53 mins ago0x5f8f69dd829f07034bf1a8b5e17709db4d6e5a6d  IN   Loopring0 Ether0.000413269961
0x5fb841dadd03909e15bd210d109092d6e5ca0ef41343422e576b4078da129f7610 hrs 58 mins ago0x8f55d04b101aceb1c77f8e485e39a711a449a22a  IN   Loopring0 Ether0.00065745
0xdf2f2a6816a6d5544bfb95ef1f7147523cafff796b034b2141e9c571ffd4adfe11 hrs agoBinance_1  IN   Loopring0 Ether0.00155745
0x3aecef9c18154db77ba7e83d51ffb010686b60858dcd14fe3a58034c4397a95f11 hrs 43 mins ago0x3cd1b0fc508e83d21b8cb0e58ddf1a52b3635ede  IN   Loopring0 Ether0.00043702
0x66b4768462dd545b56b4c3a1d442e294779adcc62378e4c904c979702b1671fd12 hrs ago0x58d6b708920620495368973dc44b6720a1d5dbe2  IN   Loopring0 Ether0.00036851
0xe57220db13cac1ab3ccd3f21d92e5a1cf57ec3166970433d7aeb5420a94bdfa812 hrs 38 mins agoBinance_1  IN   Loopring0 Ether0.00155553
[ Download CSV Export  ] 
 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
0x563fe10af69086b73efa003995ddfc899f7399eb696ea29bf0b9d38483cc10114168082430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c321039.9 Ether
0x4ea19862a4e036e2d63dd57c13e66a6c502a0a13bf942e6db37eecc69116887c4168082430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c321010 Ether
0x00035691a1ff88de5d31044ac6a99fa425abfdd8f3dbd07959e8e7a703a51afc4168079430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32102 Ether
0x06131c985c31a822ee4fc7aac04cdcc3740ff355f6f912303920a63d7c569f804168079430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.01 Ether
0x4b76fc288c02b402d58bc779f5794a7fb870e61651dd06386bae0df6f854aaf64168077430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c321011 Ether
0x24422c3742742111be4991ff05844c4f827df0d3116a0ded90fc49421411ce854168071430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32101 Ether
0x49c945616444b324188e19f3cf3dc287bd85b7102d77c8fef3e8bc9f37aef9a44168071430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32103.02 Ether
0x9090d964f60e3ac2396967825dc45dd1df594309f42ffe0a878e05c56d4acf664168071430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.5 Ether
0x48b7c0711d25e8fd0e6441334f9c615cc0ee9a1466f5cc601a4c714bc041d3784168064430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32102.4 Ether
0x71981693d9467ac501e59dd88ae7dc33d9626e8aa69d2f73fda1d6cf3094f70d4168064430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32101 Ether
0xbb3c131765b167956613269283e8efb5e276610f0a3adcec7e318ea4bf8bde2c4168059430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32101.5 Ether
0x8a02b3207c8cbea6f7ac513d78ab8f4f1912bb491326a2ec232218dc595b84464168059430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c321010 Ether
0xc09e69eb20f81c8507c1a27375729b689859afe72d34ab81a5ab78cd1a73fad74168057430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.06 Ether
0xfca5dc056c837579ae97ba0e95cd2b61d66727b5e0a024dce1d9d7c85daf4c7e4168054430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32102 Ether
0x9ad229e3b20dcbec16f3da7fd7da7b4399c0964e6b85b55d11be5e4107e3316d4168054430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.5 Ether
0x51105d7f4160c4b572128f199b08aa03c8d30fc5fb8919690790763f75b936ca4168051430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32101 Ether
0x41b70620be547e66ecd65ecd1e30c3184c8ef1a01a2cafbbb26bc91d7bdee5114168051430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32104.280637246025 Ether
0xb9ac8c5c972f0513250cc8220c722c0be03b15354b5ae05eeec2f7fe2c18fa5f4168049430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c3210389 Ether
0xd935883034b49003083869c44c0ccbe5430dbe3317bf99f6a186d59df5dba7a14168046430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c3210284.8 Ether
0x36945d17845a06c94a8ce23e201b446cdb093dfb3839c4ac1f28bda152dd55914168046430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c3210330 Ether
0xf5f84bf164dbcea5b6a0747be52680353d8529594f2e73bf07e65f2eee3bf1174168046430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.01 Ether
0x2f467860510f9c5b98749c88750473008fc017df0d2ddc612cc1c1bb755102484168046430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.5 Ether
0xf96bcbba4cda2e28645167a1a4fd9610ac60a60fbb4161fadd2765eb2b0ab2394168044430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.01 Ether
0x897c9850d8c5151c968a638cb388091f9d41f9069c4f4e5209075068ca1be2694168044430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32100.4 Ether
0xe4f25cab5e78fea6e0645d66cf12f406a9f5209e4265edca18cd735fb69abaf14168044430 days 19 hrs ago0xef68e7c694f40c8202821edf525de3782458639f0x00073f7155459c9205010cb3453a0f392a0c32101.2198 Ether
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Contract Name: LoopringToken
Compiler Text: v0.4.13+commit.fb4cb1a
Optimization Enabled: No
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

/*

  Copyright 2017 Loopring Foundation.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

*/
pragma solidity ^0.4.11;

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev 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); // Solidity automatically throws when dividing by 0
    uint c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    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;
    }
  }
}

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

  mapping(address => uint) balances;

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

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

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of. 
  * @return An uint representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }

}

/**
 * @title ERC20 interface
 * @dev 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);
}

/**
 * @title Standard ERC20 token
 *
 * @dev Implemantation of the basic standart 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 BasicToken, ERC20 {

  mapping (address => mapping (address => uint)) 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 uint the amout of tokens to be transfered
   */
  function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) {
    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);
  }

  /**
   * @dev Aprove the passed address to spend the specified amount of tokens on beahlf of msg.sender.
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint _value) {

    // To change the approve amount you first have to reduce the addresses`
    //  allowance to zero by calling `approve(_spender, 0)` if it is not
    //  already 0 to mitigate the race condition described here:
    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw;

    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }

  /**
   * @dev Function to check the amount of tokens than 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 uint specifing the amount of tokens still avaible for the spender.
   */
  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }

}

/// @title Loopring Protocol Token.
/// For more information about this token sale, please visit https://loopring.org
/// @author Kongliang Zhong - <[email protected]>, Daniel Wang - <[email protected]>.
contract LoopringToken is StandardToken {
    string public constant NAME = "LoopringCoin";
    string public constant SYMBOL = "LRC";
    uint public constant DECIMALS = 18;

    /// During token sale, we use one consistent price: 5000 LRC/ETH.
    /// We split the entire token sale period into 10 phases, each
    /// phase has a different bonus setting as specified in `bonusPercentages`.
    /// The real price for phase i is `(1 + bonusPercentages[i]/100.0) * BASE_RATE`.
    /// The first phase or early-bird phase has a much higher bonus.
    uint8[10] public bonusPercentages = [
        20,
        16,
        14,
        12,
        10,
        8,
        6,
        4,
        2,
        0
    ];

    uint public constant NUM_OF_PHASE = 10;
  
    /// Each phase contains exactly 15250 Ethereum blocks, which is roughly 3 days,
    /// which makes this 10-phase sale period roughly 30 days.
    /// See https://www.ethereum.org/crowdsale#scheduling-a-call
    uint16 public constant BLOCKS_PER_PHASE = 15250;

    /// This is where we hold ETH during this token sale. We will not transfer any Ether
    /// out of this address before we invocate the `close` function to finalize the sale. 
    /// This promise is not guanranteed by smart contract by can be verified with public
    /// Ethereum transactions data available on several blockchain browsers.
    /// This is the only address from which `start` and `close` can be invocated.
    ///
    /// Note: this will be initialized during the contract deployment.
    address public target;

    /// `firstblock` specifies from which block our token sale starts.
    /// This can only be modified once by the owner of `target` address.
    uint public firstblock = 0;

    /// Indicates whether unsold token have been issued. This part of LRC token
    /// is managed by the project team and is issued directly to `target`.
    bool public unsoldTokenIssued = false;

    /// Minimum amount of funds to be raised for the sale to succeed. 
    uint256 public constant GOAL = 50000 ether;

    /// Maximum amount of fund to be raised, the sale ends on reaching this amount.
    uint256 public constant HARD_CAP = 120000 ether;

    /// Maximum unsold ratio, this is hit when the mininum level of amount of fund is raised.
    uint public constant MAX_UNSOLD_RATIO = 675; // 67.5%

    /// Base exchange rate is set to 1 ETH = 5000 LRC.
    uint256 public constant BASE_RATE = 5000;

    /// A simple stat for emitting events.
    uint public totalEthReceived = 0;

    /// Issue event index starting from 0.
    uint public issueIndex = 0;

    /* 
     * EVENTS
     */

    /// Emitted only once after token sale starts.
    event SaleStarted();

    /// Emitted only once after token sale ended (all token issued).
    event SaleEnded();

    /// Emitted when a function is invocated by unauthorized addresses.
    event InvalidCaller(address caller);

    /// Emitted when a function is invocated without the specified preconditions.
    /// This event will not come alone with an exception.
    event InvalidState(bytes msg);

    /// Emitted for each sucuessful token purchase.
    event Issue(uint issueIndex, address addr, uint ethAmount, uint tokenAmount);

    /// Emitted if the token sale succeeded.
    event SaleSucceeded();

    /// Emitted if the token sale failed.
    /// When token sale failed, all Ether will be return to the original purchasing
    /// address with a minor deduction of transaction fee(gas)
    event SaleFailed();

    /*
     * MODIFIERS
     */

    modifier onlyOwner {
        if (target == msg.sender) {
            _;
        } else {
            InvalidCaller(msg.sender);
            throw;
        }
    }

    modifier beforeStart {
        if (!saleStarted()) {
            _;
        } else {
            InvalidState("Sale has not started yet");
            throw;
        }
    }

    modifier inProgress {
        if (saleStarted() && !saleEnded()) {
            _;
        } else {
            InvalidState("Sale is not in progress");
            throw;
        }
    }

    modifier afterEnd {
        if (saleEnded()) {
            _;
        } else {
            InvalidState("Sale is not ended yet");
            throw;
        }
    }

    /**
     * CONSTRUCTOR 
     * 
     * @dev Initialize the Loopring Token
     * @param _target The escrow account address, all ethers will
     * be sent to this address.
     * This address will be : 0x00073F7155459C9205010Cb3453a0f392a0C3210
     */
    function LoopringToken(address _target) {
        target = _target;
    }

    /*
     * PUBLIC FUNCTIONS
     */

    /// @dev Start the token sale.
    /// @param _firstblock The block from which the sale will start.
    function start(uint _firstblock) public onlyOwner beforeStart {
        if (_firstblock <= block.number) {
            // Must specify a block in the future.
            throw;
        }

        firstblock = _firstblock;
        SaleStarted();
    }

    /// @dev Triggers unsold tokens to be issued to `target` address.
    function close() public onlyOwner afterEnd {
        if (totalEthReceived < GOAL) {
            SaleFailed();
        } else {
            issueUnsoldToken();
            SaleSucceeded();
        }
    }

    /// @dev Returns the current price.
    function price() public constant returns (uint tokens) {
        return computeTokenAmount(1 ether);
    }

    /// @dev This default function allows token to be purchased by directly
    /// sending ether to this smart contract.
    function () payable {
        issueToken(msg.sender);
    }

    /// @dev Issue token based on Ether received.
    /// @param recipient Address that newly issued token will be sent to.
    function issueToken(address recipient) payable inProgress {
        // We only accept minimum purchase of 0.01 ETH.
        assert(msg.value >= 0.01 ether);

        uint tokens = computeTokenAmount(msg.value);
        totalEthReceived = totalEthReceived.add(msg.value);
        totalSupply = totalSupply.add(tokens);
        balances[recipient] = balances[recipient].add(tokens);

        Issue(
            issueIndex++,
            recipient,
            msg.value,
            tokens
        );

        if (!target.send(msg.value)) {
            throw;
        }
    }

    /*
     * INTERNAL FUNCTIONS
     */
  
    /// @dev Compute the amount of LRC token that can be purchased.
    /// @param ethAmount Amount of Ether to purchase LRC.
    /// @return Amount of LRC token to purchase
    function computeTokenAmount(uint ethAmount) internal constant returns (uint tokens) {
        uint phase = (block.number - firstblock).div(BLOCKS_PER_PHASE);

        // A safe check
        if (phase >= bonusPercentages.length) {
            phase = bonusPercentages.length - 1;
        }

        uint tokenBase = ethAmount.mul(BASE_RATE);
        uint tokenBonus = tokenBase.mul(bonusPercentages[phase]).div(100);

        tokens = tokenBase.add(tokenBonus);
    }

    /// @dev Issue unsold token to `target` address.
    /// The math is as follows:
    ///   +-------------------------------------------------------------+
    ///   |       Total Ethers Received        |                        |
    ///   +------------------------------------+  Unsold Token Portion  |
    ///   |   Lower Bound   |   Upper Bound    |                        |
    ///   +-------------------------------------------------------------+
    ///   |      50,000     |     60,000       |         67.5%          |
    ///   +-------------------------------------------------------------+
    ///   |      60,000     |     70,000       |         65.0%          |
    ///   +-------------------------------------------------------------+
    ///   |      70,000     |     80,000       |         62.5%          |
    ///   +-------------------------------------------------------------+
    ///   |      80,000     |     90,000       |         60.0%          |
    ///   +-------------------------------------------------------------+
    ///   |      90,000     |    100,000       |         57.5%          |
    ///   +-------------------------------------------------------------+
    ///   |     100,000     |    110,000       |         55.0%          |
    ///   +-------------------------------------------------------------+
    ///   |     110,000     |    120,000       |         52.5%          |
    ///   +-------------------------------------------------------------+
    ///   |     120,000     |                  |         50.0%          |
    ///   +-------------------------------------------------------------+
    function issueUnsoldToken() internal {
        if (unsoldTokenIssued) {
            InvalidState("Unsold token has been issued already");
        } else {
            // Add another safe guard 
            require(totalEthReceived >= GOAL);

            uint level = totalEthReceived.sub(GOAL).div(10000 ether);
            if (level > 7) {
                level = 7;
            }

            uint unsoldRatioInThousand = MAX_UNSOLD_RATIO - 25 * level;


            // Calculate the `unsoldToken` to be issued, the amount of `unsoldToken`
            // is based on the issued amount, that is the `totalSupply`, during 
            // the sale:
            //                   totalSupply
            //   unsoldToken = --------------- * r
            //                      1 - r
            uint unsoldToken = totalSupply.div(1000 - unsoldRatioInThousand).mul(unsoldRatioInThousand);

            // Adjust `totalSupply`.
            totalSupply = totalSupply.add(unsoldToken);
            // Issue `unsoldToken` to the target account.
            balances[target] = balances[target].add(unsoldToken);

            Issue(
                issueIndex++,
                target,
                0,
                unsoldToken
            );
            
            unsoldTokenIssued = true;
        }
    }

    /// @return true if sale has started, false otherwise.
    function saleStarted() constant returns (bool) {
        return (firstblock > 0 && block.number >= firstblock);
    }

    /// @return true if sale has ended, false otherwise.
    function saleEnded() constant returns (bool) {
        return firstblock > 0 && (saleDue() || hardCapReached());
    }

    /// @return true if sale is due when the last phase is finished.
    function saleDue() constant returns (bool) {
        return block.number >= firstblock + BLOCKS_PER_PHASE * NUM_OF_PHASE;
    }

    /// @return true if the hard cap is reached.
    function hardCapReached() constant returns (bool) {
        return totalEthReceived >= HARD_CAP;
    }
}

    Contract ABI  
[{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"bonusPercentages","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"DECIMALS","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"BLOCKS_PER_PHASE","outputs":[{"name":"","type":"uint16"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"MAX_UNSOLD_RATIO","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"HARD_CAP","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"BASE_RATE","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"close","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"saleStarted","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"issueIndex","outputs":[{"name":"","type":"uint256"}],"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":"recipient","type":"address"}],"name":"issueToken","outputs":[],"payable":true,"type":"function"},{"constant":false,"inputs":[{"name":"_firstblock","type":"uint256"}],"name":"start","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"hardCapReached","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"saleEnded","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"unsoldTokenIssued","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"price","outputs":[{"name":"tokens","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"GOAL","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"NAME","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalEthReceived","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"saleDue","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"target","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"NUM_OF_PHASE","outputs":[{"name":"","type":"uint256"}],"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"},{"constant":true,"inputs":[],"name":"firstblock","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"SYMBOL","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"inputs":[{"name":"_target","type":"address"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[],"name":"SaleStarted","type":"event"},{"anonymous":false,"inputs":[],"name":"SaleEnded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"caller","type":"address"}],"name":"InvalidCaller","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"msg","type":"bytes"}],"name":"InvalidState","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"issueIndex","type":"uint256"},{"indexed":false,"name":"addr","type":"address"},{"indexed":false,"name":"ethAmount","type":"uint256"},{"indexed":false,"name":"tokenAmount","type":"uint256"}],"name":"Issue","type":"event"},{"anonymous":false,"inputs":[],"name":"SaleSucceeded","type":"event"},{"anonymous":false,"inputs":[],"name":"SaleFailed","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"},{"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"}]

  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)
00000000000000000000000000073f7155459c9205010cb3453a0f392a0c3210

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000000073f7155459c9205010cb3453a0f392a0c3210


   Swarm Source:
bzzr://c28f0e4dfa60c1f704fec244ecddb7b811aeeeacfae31316717dd89fcca1aa44

 

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