Contract 0xcc80c051057b774cd75067dc48f8987c4eb97a5e

 
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0x85ab05914d63f3e4cabdac85af32091489e97f2f94ede6a35d90df28db1f33f1Transfer123937962021-05-08 12:55:451 hr 3 mins ago0xc2ef2c3f75a9b05e76f1f19384bf1b66fd011258 IN  Ethfinex: Nectar Token0 Ether0.01268782515121.77
0x9646f112f31f0029a3b0fc78f80da2e7c173a8b97bd6200d6f2e83b44afc4499Transfer123937682021-05-08 12:50:161 hr 8 mins ago0x6a14843832f87657d21f45b3566f70ae8e815a92 IN  Ethfinex: Nectar Token0 Ether0.01021228698
0xfb85e4bf88bc502b3d75acb0bacf367b2cdd0f9078b7846e7d1183796044bed2Transfer123933502021-05-08 11:16:372 hrs 42 mins ago0x97d6b4fe53ed5098b660e37386d620894f393bd8 IN  Ethfinex: Nectar Token0 Ether0.011549660133110.872125
0x49873f0f84c0140ce468f7971f2f70ceadf1870713ceb9d767fac5ce74119a50Transfer123933152021-05-08 11:09:202 hrs 49 mins agoHoo.com 5 IN  Ethfinex: Nectar Token0 Ether0.00895973886
0x73aaa13fb66f1d3bc269c7a1891cb5364e00d353e72469f6a1850d30c547330fTransfer123886662021-05-07 18:07:3319 hrs 51 mins ago0x2f7a9c878093e4d8b9d0ef6635622f23587887a9 IN  Ethfinex: Nectar Token0 Ether0.01255318155122.85
0xd74881dc569bfdc5c0988263cfe0ac4bb5efd4d06a29d9fc2dfb88569e1bdba1Transfer123886432021-05-07 18:02:1119 hrs 56 mins ago0x9c2dfd5acbcf22cb9a82eaaee95824faf5e1e035 IN  Ethfinex: Nectar Token0 Ether0.01127395296
0xa6081ffe2f559a44fecd2f653c02bfab84a572d4a6fca615642502f64692a1f7Approve123852892021-05-07 5:21:451 day 8 hrs ago0xab882aac62c01573751d93d3ea9e1b1b3f365329 IN  Ethfinex: Nectar Token0 Ether0.0016950831
0xacf726c17959a8a949b07443e30261f7546f1b2fdddee8632627bae92e25d866Transfer123852682021-05-07 5:17:391 day 8 hrs ago0xf92cef96036a73a3802bcb8b4b39983c2a6fb5ae IN  Ethfinex: Nectar Token0 Ether0.0034631130
0xa5ae79cfc65bc3f66fc4dbf5b9560541aece9a727e53b10720f87b876085da9fTransfer123830452021-05-06 20:59:021 day 16 hrs ago0x322ba88fa949d0e84037958bf82e04e2b279d48d IN  Ethfinex: Nectar Token0 Ether0.010456537738102.3435
0x57e7ca4d90b434cbad00f142db46222e268b768407a4dde36d17eb9106002438Transfer123829942021-05-06 20:47:111 day 17 hrs agoHoo.com 5 IN  Ethfinex: Nectar Token0 Ether0.01385615118
0x67ce8be76ea2fe9b59a24e03516db46407199914322e24017d9c91072fc5eb16Transfer123818932021-05-06 16:49:251 day 21 hrs agoBitfinex 3 IN  Ethfinex: Nectar Token0 Ether0.0118143522113.4
0xec64b9b18a7bcc9fc7b7a6235f39e06bd7853e6dc8f60d9750dce410ebb5f46aTransfer123818912021-05-06 16:48:541 day 21 hrs agoBitfinex 3 IN  Ethfinex: Nectar Token0 Ether0.010984534605105.435
0xde032c398069a31f01c40f04206853105648d89800b5f21ea70b4d39df78be79Approve123779072021-05-06 1:57:512 days 12 hrs ago0xde07abf5663b88fbd0974ee69b3bc75971a29381 IN  Ethfinex: Nectar Token0 Ether0.00214281639
0x94b11b60b45e1b118f65068d7878e81bd7a5799002aaf375f07bb1219d9010dbApprove123739082021-05-05 11:18:533 days 2 hrs ago0x3295ddc1303ba1c6f62a4d45fd66cc57ae913cb8 IN  Ethfinex: Nectar Token0 Ether0.00207692838
0x9b18e57687c7fdf65274822c92014a650b3f4f67e16bc458e3e5749a37760f22Transfer123738932021-05-05 11:15:333 days 2 hrs agoBitfinex 3 IN  Ethfinex: Nectar Token0 Ether0.00975350628993.618980921
0x8bbf44e1e63166ef40f64c11c7e56fc4a7d7e78953f2f44c27301aec566ee5eeTransfer123715402021-05-05 2:32:533 days 11 hrs ago0x0b23ff6eb49aa1698a1f8b56ea215cb3b97a96f5 IN  Ethfinex: Nectar Token0 Ether0.00717358562.142857143
0x4c01283d6e34b250359cad799ab07afc1ef771045ca5530d891d2154afb87030Transfer123699252021-05-04 20:29:083 days 17 hrs agoBitfinex 3 IN  Ethfinex: Nectar Token0 Ether0.01026684872598.546295707
0xf68953361a160020cf4359ed1dfad4c9a4b21c3f0b256bbc15075ec00b1b6ffcApprove123695032021-05-04 19:01:593 days 18 hrs ago0x1a361e8974ad9bdec806e0e62c8e189f138e8ce5 IN  Ethfinex: Nectar Token0 Ether0.00395596872
0xa3959ff08a97e1cf2baa7b966f0580aa8bcc995ffec249a46fca76c365d92db7Approve123694332021-05-04 18:46:433 days 19 hrs ago0x1a361e8974ad9bdec806e0e62c8e189f138e8ce5 IN  Ethfinex: Nectar Token0 Ether0.00434057679
0x8f5fb2a8a55859227963cbe89059701aea19a0b6aed984c84478ea554e43c6afTransfer123633692021-05-03 20:22:184 days 17 hrs ago0x4ac69bc506899e0c8dc526b0a0c8e35165c3d41d IN  Ethfinex: Nectar Token0 Ether0.01080845398103.73294285
0xede3fdfd000557f840a62c64783200f4260455e80866de8ac34fecdc47b771a3Transfer123633352021-05-03 20:13:084 days 17 hrs ago0x893dff944174c2af97253dbfd614b7534604af3f IN  Ethfinex: Nectar Token0 Ether0.00823235379
0xe610c93a2f49b38008b855734668050b50f0bc62ecea8e398ae226bc3811ee4dApprove123622162021-05-03 16:07:584 days 21 hrs ago0x7e21eb8666b1fe161d8612e6ca9710c25d8c09fd IN  Ethfinex: Nectar Token0 Ether0.0030701731456.185
0x6dc73c8ccfbbdeea795020d9a0d14f09a4ef2e47372f20537171575040b7cfb4Transfer123620232021-05-03 15:20:524 days 22 hrs agoBitfinex 3 IN  Ethfinex: Nectar Token0 Ether0.011974747019114.939548866
0xe0d68cf7c2d7e723d900726f1252e6e27a40cfe9e70f4b42e2fb78533e105a91Transfer123603142021-05-03 9:12:155 days 4 hrs agoDeversiFi IN  Ethfinex: Nectar Token0 Ether0.00468769545
0x855df29fcef4aa68d2bf07355ecb27a34eb3d0094f91ed72c215cc60f5a21bbaApprove123590122021-05-03 4:16:365 days 9 hrs ago0x9a8c884066610ae321a6c0a0b7fad67850c8e48f IN  Ethfinex: Nectar Token0 Ether0.00151096001227.500000233
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0xf3d3552300f60490881fd3ff3c8452fa2e303f7bdde28f7d9156fc238cb1f1fc111925202020-11-04 19:14:13184 days 18 hrs ago Ethfinex: Nectar Token 0x4505f7ce9126acfe4f7d736ee56654a2fa782d6b0.00745619485522555 Ether
0x3186760c60d2158cfaecc269c5ab703abb960b7468bbd9e9cc0fc942ae96200d111132892020-10-23 15:16:06196 days 22 hrs ago Ethfinex: Nectar Token 0x4505f7ce9126acfe4f7d736ee56654a2fa782d6b0.024158090544523361 Ether
0x652e4eec9142c449b08726f297464bd2581b79d5882e8bc84996721babfc4835109462312020-09-27 18:34:55222 days 19 hrs ago Ethfinex: Nectar Token 0x4505f7ce9126acfe4f7d736ee56654a2fa782d6b0.042785 Ether
0xe38e30cf752833d715415731387b86d851b126a632f91da52a2106ad2134bbdf109356812020-09-26 2:51:24224 days 11 hrs ago Ethfinex: Nectar Token 0x4505f7ce9126acfe4f7d736ee56654a2fa782d6b4.589759812114158315 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
NEC

Compiler Version
v0.4.19+commit.c4cbbb05

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-02-11
*/

pragma solidity ^0.4.18;

/*
    Copyright 2016, Jordi Baylina

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/// @title MiniMeToken Contract
/// @author Jordi Baylina
/// @dev This token contract's goal is to make it easy for anyone to clone this
///  token using the token distribution at a given block, this will allow DAO's
///  and DApps to upgrade their features in a decentralized manner without
///  affecting the original token
/// @dev It is ERC20 compliant, but still needs to under go further testing.

/// CHANGE LOG: Will Harborne (Ethfinex)  - 07/10/2017
/// `transferFrom` edited to allow infinite approvals
/// New function `pledgeFees` for Controller to update balance owned by token holders
/// New getter functions `totalPledgedFeesAt` and `totalPledgedFees`
/// New Checkpoint[] totalPledgedFeesHistory;
/// Addition of onBurn function to Controller, called when user tries to burn tokens
/// Version 'MMT_0.2' bumped to 'EFX_0.1'

/// @dev The token controller contract must implement these functions
contract TokenController {
    /// @notice Called when `_owner` sends ether to the MiniMe Token contract
    /// @param _owner The address that sent the ether to create tokens
    /// @return True if the ether is accepted, false if it throws
    function proxyPayment(address _owner) public payable returns(bool);

    /// @notice Notifies the controller about a token transfer allowing the
    ///  controller to react if desired
    /// @param _from The origin of the transfer
    /// @param _to The destination of the transfer
    /// @param _amount The amount of the transfer
    /// @return False if the controller does not authorize the transfer
    function onTransfer(address _from, address _to, uint _amount) public returns(bool);

    /// @notice Notifies the controller about an approval allowing the
    ///  controller to react if desired
    /// @param _owner The address that calls `approve()`
    /// @param _spender The spender in the `approve()` call
    /// @param _amount The amount in the `approve()` call
    /// @return False if the controller does not authorize the approval
    function onApprove(address _owner, address _spender, uint _amount) public
        returns(bool);

    /// @notice Notifies the controller about a token burn
    /// @param _owner The address of the burner
    /// @param _amount The amount to burn
    /// @return False if the controller does not authorize the burn
    function onBurn(address _owner, uint _amount) public returns(bool);
}

contract Controlled {
    /// @notice The address of the controller is the only address that can call
    ///  a function with this modifier
    modifier onlyController { require(msg.sender == controller); _; }

    address public controller;

    function Controlled() public { controller = msg.sender;}

    /// @notice Changes the controller of the contract
    /// @param _newController The new controller of the contract
    function changeController(address _newController) public onlyController {
        controller = _newController;
    }
}

contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 _amount, address _token, bytes _data) public;
}

/// @dev The actual token contract, the default controller is the msg.sender
///  that deploys the contract, so usually this token will be deployed by a
///  token controller contract, which Giveth will call a "Campaign"
contract MiniMeToken is Controlled {

    string public name;                //The Token's name: e.g. DigixDAO Tokens
    uint8 public decimals;             //Number of decimals of the smallest unit
    string public symbol;              //An identifier: e.g. REP
    string public version = 'EFX_0.1'; //An arbitrary versioning scheme


    /// @dev `Checkpoint` is the structure that attaches a block number to a
    ///  given value, the block number attached is the one that last changed the
    ///  value
    struct  Checkpoint {

        // `fromBlock` is the block number that the value was generated from
        uint128 fromBlock;

        // `value` is the amount of tokens at a specific block number
        uint128 value;
    }

    // `parentToken` is the Token address that was cloned to produce this token;
    //  it will be 0x0 for a token that was not cloned
    MiniMeToken public parentToken;

    // `parentSnapShotBlock` is the block number from the Parent Token that was
    //  used to determine the initial distribution of the Clone Token
    uint public parentSnapShotBlock;

    // `creationBlock` is the block number that the Clone Token was created
    uint public creationBlock;

    // `balances` is the map that tracks the balance of each address, in this
    //  contract when the balance changes the block number that the change
    //  occurred is also included in the map
    mapping (address => Checkpoint[]) balances;

    // `allowed` tracks any extra transfer rights as in all ERC20 tokens
    mapping (address => mapping (address => uint256)) allowed;

    // Tracks the history of the `totalSupply` of the token
    Checkpoint[] totalSupplyHistory;

    // Flag that determines if the token is transferable or not.
    bool public transfersEnabled;

    // Tracks the history of the `pledgedFees` belonging to token holders
    Checkpoint[] totalPledgedFeesHistory; // in wei

    // The factory used to create new clone tokens
    MiniMeTokenFactory public tokenFactory;

////////////////
// Constructor
////////////////

    /// @notice Constructor to create a MiniMeToken
    /// @param _tokenFactory The address of the MiniMeTokenFactory contract that
    ///  will create the Clone token contracts, the token factory needs to be
    ///  deployed first
    /// @param _parentToken Address of the parent token, set to 0x0 if it is a
    ///  new token
    /// @param _parentSnapShotBlock Block of the parent token that will
    ///  determine the initial distribution of the clone token, set to 0 if it
    ///  is a new token
    /// @param _tokenName Name of the new token
    /// @param _decimalUnits Number of decimals of the new token
    /// @param _tokenSymbol Token Symbol for the new token
    /// @param _transfersEnabled If true, tokens will be able to be transferred
    function MiniMeToken(
        address _tokenFactory,
        address _parentToken,
        uint _parentSnapShotBlock,
        string _tokenName,
        uint8 _decimalUnits,
        string _tokenSymbol,
        bool _transfersEnabled
    ) public {
        tokenFactory = MiniMeTokenFactory(_tokenFactory);
        name = _tokenName;                                 // Set the name
        decimals = _decimalUnits;                          // Set the decimals
        symbol = _tokenSymbol;                             // Set the symbol
        parentToken = MiniMeToken(_parentToken);
        parentSnapShotBlock = _parentSnapShotBlock;
        transfersEnabled = _transfersEnabled;
        creationBlock = block.number;
    }


///////////////////
// ERC20 Methods
///////////////////

    uint constant MAX_UINT = 2**256 - 1;

    /// @notice Send `_amount` tokens to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _amount The amount of tokens to be transferred
    /// @return Whether the transfer was successful or not
    function transfer(address _to, uint256 _amount) public returns (bool success) {
        require(transfersEnabled);
        doTransfer(msg.sender, _to, _amount);
        return true;
    }

    /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it
    ///  is approved by `_from`
    /// @param _from The address holding the tokens being transferred
    /// @param _to The address of the recipient
    /// @param _amount The amount of tokens to be transferred
    /// @return True if the transfer was successful
    function transferFrom(address _from, address _to, uint256 _amount
    ) public returns (bool success) {

        // The controller of this contract can move tokens around at will,
        //  this is important to recognize! Confirm that you trust the
        //  controller of this contract, which in most situations should be
        //  another open source smart contract or 0x0
        if (msg.sender != controller) {
            require(transfersEnabled);

            // The standard ERC 20 transferFrom functionality
            if (allowed[_from][msg.sender] < MAX_UINT) {
                require(allowed[_from][msg.sender] >= _amount);
                allowed[_from][msg.sender] -= _amount;
            }
        }
        doTransfer(_from, _to, _amount);
        return true;
    }

    /// @dev This is the actual transfer function in the token contract, it can
    ///  only be called by other functions in this contract.
    /// @param _from The address holding the tokens being transferred
    /// @param _to The address of the recipient
    /// @param _amount The amount of tokens to be transferred
    /// @return True if the transfer was successful
    function doTransfer(address _from, address _to, uint _amount
    ) internal {

           if (_amount == 0) {
               Transfer(_from, _to, _amount);    // Follow the spec to louch the event when transfer 0
               return;
           }

           require(parentSnapShotBlock < block.number);

           // Do not allow transfer to 0x0 or the token contract itself
           require((_to != 0) && (_to != address(this)));

           // If the amount being transfered is more than the balance of the
           //  account the transfer throws
           var previousBalanceFrom = balanceOfAt(_from, block.number);

           require(previousBalanceFrom >= _amount);

           // Alerts the token controller of the transfer
           if (isContract(controller)) {
               require(TokenController(controller).onTransfer(_from, _to, _amount));
           }

           // First update the balance array with the new value for the address
           //  sending the tokens
           updateValueAtNow(balances[_from], previousBalanceFrom - _amount);

           // Then update the balance array with the new value for the address
           //  receiving the tokens
           var previousBalanceTo = balanceOfAt(_to, block.number);
           require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow
           updateValueAtNow(balances[_to], previousBalanceTo + _amount);

           // An event to make the transfer easy to find on the blockchain
           Transfer(_from, _to, _amount);

    }

    /// @param _owner The address that's balance is being requested
    /// @return The balance of `_owner` at the current block
    function balanceOf(address _owner) public constant returns (uint256 balance) {
        return balanceOfAt(_owner, block.number);
    }

    /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on
    ///  its behalf. This is a modified version of the ERC20 approve function
    ///  to be a little bit safer
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _amount The amount of tokens to be approved for transfer
    /// @return True if the approval was successful
    function approve(address _spender, uint256 _amount) public returns (bool success) {
        require(transfersEnabled);

        // 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
        require((_amount == 0) || (allowed[msg.sender][_spender] == 0));

        // Alerts the token controller of the approve function call
        if (isContract(controller)) {
            require(TokenController(controller).onApprove(msg.sender, _spender, _amount));
        }

        allowed[msg.sender][_spender] = _amount;
        Approval(msg.sender, _spender, _amount);
        return true;
    }

    /// @dev This function makes it easy to read the `allowed[]` map
    /// @param _owner The address of the account that owns the token
    /// @param _spender The address of the account able to transfer the tokens
    /// @return Amount of remaining tokens of _owner that _spender is allowed
    ///  to spend
    function allowance(address _owner, address _spender
    ) public constant returns (uint256 remaining) {
        return allowed[_owner][_spender];
    }

    /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on
    ///  its behalf, and then a function is triggered in the contract that is
    ///  being approved, `_spender`. This allows users to use their tokens to
    ///  interact with contracts in one function call instead of two
    /// @param _spender The address of the contract able to transfer the tokens
    /// @param _amount The amount of tokens to be approved for transfer
    /// @return True if the function call was successful
    function approveAndCall(address _spender, uint256 _amount, bytes _extraData
    ) public returns (bool success) {
        require(approve(_spender, _amount));

        ApproveAndCallFallBack(_spender).receiveApproval(
            msg.sender,
            _amount,
            this,
            _extraData
        );

        return true;
    }

    /// @dev This function makes it easy to get the total number of tokens
    /// @return The total number of tokens
    function totalSupply() public constant returns (uint) {
        return totalSupplyAt(block.number);
    }


////////////////
// Query balance and totalSupply in History
////////////////

    /// @dev Queries the balance of `_owner` at a specific `_blockNumber`
    /// @param _owner The address from which the balance will be retrieved
    /// @param _blockNumber The block number when the balance is queried
    /// @return The balance at `_blockNumber`
    function balanceOfAt(address _owner, uint _blockNumber) public constant
        returns (uint) {

        // These next few lines are used when the balance of the token is
        //  requested before a check point was ever created for this token, it
        //  requires that the `parentToken.balanceOfAt` be queried at the
        //  genesis block for that token as this contains initial balance of
        //  this token
        if ((balances[_owner].length == 0)
            || (balances[_owner][0].fromBlock > _blockNumber)) {
            if (address(parentToken) != 0) {
                return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock));
            } else {
                // Has no parent
                return 0;
            }

        // This will return the expected balance during normal situations
        } else {
            return getValueAt(balances[_owner], _blockNumber);
        }
    }

    /// @notice Total amount of tokens at a specific `_blockNumber`.
    /// @param _blockNumber The block number when the totalSupply is queried
    /// @return The total amount of tokens at `_blockNumber`
    function totalSupplyAt(uint _blockNumber) public constant returns(uint) {

        // These next few lines are used when the totalSupply of the token is
        //  requested before a check point was ever created for this token, it
        //  requires that the `parentToken.totalSupplyAt` be queried at the
        //  genesis block for this token as that contains totalSupply of this
        //  token at this block number.
        if ((totalSupplyHistory.length == 0)
            || (totalSupplyHistory[0].fromBlock > _blockNumber)) {
            if (address(parentToken) != 0) {
                return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock));
            } else {
                return 0;
            }

        // This will return the expected totalSupply during normal situations
        } else {
            return getValueAt(totalSupplyHistory, _blockNumber);
        }
    }

////////////////
// Query pledgedFees // in wei
////////////////

   /// @dev This function makes it easy to get the total pledged fees
   /// @return The total number of fees belonging to token holders
   function totalPledgedFees() public constant returns (uint) {
       return totalPledgedFeesAt(block.number);
   }

   /// @notice Total amount of fees at a specific `_blockNumber`.
   /// @param _blockNumber The block number when the totalPledgedFees is queried
   /// @return The total amount of pledged fees at `_blockNumber`
   function totalPledgedFeesAt(uint _blockNumber) public constant returns(uint) {

       // These next few lines are used when the totalPledgedFees of the token is
       //  requested before a check point was ever created for this token, it
       //  requires that the `parentToken.totalPledgedFeesAt` be queried at the
       //  genesis block for this token as that contains totalPledgedFees of this
       //  token at this block number.
       if ((totalPledgedFeesHistory.length == 0)
           || (totalPledgedFeesHistory[0].fromBlock > _blockNumber)) {
           if (address(parentToken) != 0) {
               return parentToken.totalPledgedFeesAt(min(_blockNumber, parentSnapShotBlock));
           } else {
               return 0;
           }

       // This will return the expected totalPledgedFees during normal situations
       } else {
           return getValueAt(totalPledgedFeesHistory, _blockNumber);
       }
   }

////////////////
// Pledge Fees To Token Holders or Reduce Pledged Fees // in wei
////////////////

   /// @notice Pledges fees to the token holders, later to be claimed by burning
   /// @param _value The amount sent to the vault by controller, reserved for token holders
   function pledgeFees(uint _value) public onlyController returns (bool) {
       uint curTotalFees = totalPledgedFees();
       require(curTotalFees + _value >= curTotalFees); // Check for overflow
       updateValueAtNow(totalPledgedFeesHistory, curTotalFees + _value);
       return true;
   }

   /// @notice Reduces pledged fees to the token holders, i.e. during upgrade or token burning
   /// @param _value The amount of pledged fees which are being distributed to token holders, reducing liability
   function reducePledgedFees(uint _value) public onlyController returns (bool) {
       uint curTotalFees = totalPledgedFees();
       require(curTotalFees >= _value);
       updateValueAtNow(totalPledgedFeesHistory, curTotalFees - _value);
       return true;
   }

////////////////
// Clone Token Method
////////////////

    /// @notice Creates a new clone token with the initial distribution being
    ///  this token at `_snapshotBlock`
    /// @param _cloneTokenName Name of the clone token
    /// @param _cloneDecimalUnits Number of decimals of the smallest unit
    /// @param _cloneTokenSymbol Symbol of the clone token
    /// @param _snapshotBlock Block when the distribution of the parent token is
    ///  copied to set the initial distribution of the new clone token;
    ///  if the block is zero than the actual block, the current block is used
    /// @param _transfersEnabled True if transfers are allowed in the clone
    /// @return The address of the new MiniMeToken Contract
    function createCloneToken(
        string _cloneTokenName,
        uint8 _cloneDecimalUnits,
        string _cloneTokenSymbol,
        uint _snapshotBlock,
        bool _transfersEnabled
        ) public returns(address) {
        if (_snapshotBlock == 0) _snapshotBlock = block.number;
        MiniMeToken cloneToken = tokenFactory.createCloneToken(
            this,
            _snapshotBlock,
            _cloneTokenName,
            _cloneDecimalUnits,
            _cloneTokenSymbol,
            _transfersEnabled
            );

        cloneToken.changeController(msg.sender);

        // An event to make the token easy to find on the blockchain
        NewCloneToken(address(cloneToken), _snapshotBlock);
        return address(cloneToken);
    }

////////////////
// Generate and destroy tokens
////////////////

    /// @notice Generates `_amount` tokens that are assigned to `_owner`
    /// @param _owner The address that will be assigned the new tokens
    /// @param _amount The quantity of tokens generated
    /// @return True if the tokens are generated correctly
    function generateTokens(address _owner, uint _amount
    ) public onlyController returns (bool) {
        uint curTotalSupply = totalSupply();
        require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow
        uint previousBalanceTo = balanceOf(_owner);
        require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow
        updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
        updateValueAtNow(balances[_owner], previousBalanceTo + _amount);
        Transfer(0, _owner, _amount);
        return true;
    }


    /// @notice Burns `_amount` tokens from `_owner`
    /// @param _owner The address that will lose the tokens
    /// @param _amount The quantity of tokens to burn
    /// @return True if the tokens are burned correctly
    function destroyTokens(address _owner, uint _amount
    ) onlyController public returns (bool) {
        uint curTotalSupply = totalSupply();
        require(curTotalSupply >= _amount);
        uint previousBalanceFrom = balanceOf(_owner);
        require(previousBalanceFrom >= _amount);
        updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount);
        updateValueAtNow(balances[_owner], previousBalanceFrom - _amount);
        Transfer(_owner, 0, _amount);
        return true;
    }

////////////////
// Enable tokens transfers
////////////////


    /// @notice Enables token holders to transfer their tokens freely if true
    /// @param _transfersEnabled True if transfers are allowed in the clone
    function enableTransfers(bool _transfersEnabled) public onlyController {
        transfersEnabled = _transfersEnabled;
    }

////////////////
// Internal helper functions to query and set a value in a snapshot array
////////////////

    /// @dev `getValueAt` retrieves the number of tokens at a given block number
    /// @param checkpoints The history of values being queried
    /// @param _block The block number to retrieve the value at
    /// @return The number of tokens being queried
    function getValueAt(Checkpoint[] storage checkpoints, uint _block
    ) constant internal returns (uint) {
        if (checkpoints.length == 0) return 0;

        // Shortcut for the actual value
        if (_block >= checkpoints[checkpoints.length-1].fromBlock)
            return checkpoints[checkpoints.length-1].value;
        if (_block < checkpoints[0].fromBlock) return 0;

        // Binary search of the value in the array
        uint min = 0;
        uint max = checkpoints.length-1;
        while (max > min) {
            uint mid = (max + min + 1)/ 2;
            if (checkpoints[mid].fromBlock<=_block) {
                min = mid;
            } else {
                max = mid-1;
            }
        }
        return checkpoints[min].value;
    }

    /// @dev `updateValueAtNow` used to update the `balances` map and the
    ///  `totalSupplyHistory`
    /// @param checkpoints The history of data being updated
    /// @param _value The new number of tokens
    function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value
    ) internal  {
        if ((checkpoints.length == 0)
        || (checkpoints[checkpoints.length -1].fromBlock < block.number)) {
               Checkpoint storage newCheckPoint = checkpoints[ checkpoints.length++ ];
               newCheckPoint.fromBlock =  uint128(block.number);
               newCheckPoint.value = uint128(_value);
           } else {
               Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1];
               oldCheckPoint.value = uint128(_value);
           }
    }

    /// @dev Internal function to determine if an address is a contract
    /// @param _addr The address being queried
    /// @return True if `_addr` is a contract
    function isContract(address _addr) constant internal returns(bool) {
        uint size;
        if (_addr == 0) return false;
        assembly {
            size := extcodesize(_addr)
        }
        return size>0;
    }

    /// @dev Helper function to return a min betwen the two uints
    function min(uint a, uint b) pure internal returns (uint) {
        return a < b ? a : b;
    }

    /// @notice The fallback function: If the contract's controller has not been
    ///  set to 0, then the `proxyPayment` method is called which relays the
    ///  ether and creates tokens as described in the token controller contract
    function () public payable {
        require(isContract(controller));
        require(TokenController(controller).proxyPayment.value(msg.value)(msg.sender));
    }

//////////
// Safety Methods
//////////

    /// @notice This method can be used by the controller to extract mistakenly
    ///  sent tokens to this contract.
    /// @param _token The address of the token contract that you want to recover
    ///  set to 0 in case you want to extract ether.
    function claimTokens(address _token) public onlyController {
        if (_token == 0x0) {
            controller.transfer(this.balance);
            return;
        }

        MiniMeToken token = MiniMeToken(_token);
        uint balance = token.balanceOf(this);
        token.transfer(controller, balance);
        ClaimedTokens(_token, controller, balance);
    }

////////////////
// Events
////////////////
    event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount);
    event Transfer(address indexed _from, address indexed _to, uint256 _amount);
    event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock);
    event Approval(
        address indexed _owner,
        address indexed _spender,
        uint256 _amount
        );

}


////////////////
// MiniMeTokenFactory
////////////////

/// @dev This contract is used to generate clone contracts from a contract.
///  In solidity this is the way to create a contract from a contract of the
///  same class
contract MiniMeTokenFactory {

    /// @notice Update the DApp by creating a new token with new functionalities
    ///  the msg.sender becomes the controller of this clone token
    /// @param _parentToken Address of the token being cloned
    /// @param _snapshotBlock Block of the parent token that will
    ///  determine the initial distribution of the clone token
    /// @param _tokenName Name of the new token
    /// @param _decimalUnits Number of decimals of the new token
    /// @param _tokenSymbol Token Symbol for the new token
    /// @param _transfersEnabled If true, tokens will be able to be transferred
    /// @return The address of the new token contract
    function createCloneToken(
        address _parentToken,
        uint _snapshotBlock,
        string _tokenName,
        uint8 _decimalUnits,
        string _tokenSymbol,
        bool _transfersEnabled
    ) public returns (MiniMeToken) {
        MiniMeToken newToken = new MiniMeToken(
            this,
            _parentToken,
            _snapshotBlock,
            _tokenName,
            _decimalUnits,
            _tokenSymbol,
            _transfersEnabled
            );

        newToken.changeController(msg.sender);
        return newToken;
    }
}

/*
    Copyright 2017, Will Harborne (Ethfinex)
*/

contract NEC is MiniMeToken {

  function NEC(
    address _tokenFactory,
    address efxVaultWallet
  ) public MiniMeToken(
    _tokenFactory,
    0x0,                    // no parent token
    0,                      // no snapshot block number from parent
    "Ethfinex Nectar Token", // Token name
    18,                     // Decimals
    "NEC",                  // Symbol
    true                    // Enable transfers
    ) {
        generateTokens(efxVaultWallet, 1000000000000000000000000000);
        enableBurning(false);
    }

    // Flag that determines if the token can be burned for rewards or not
    bool public burningEnabled;


////////////////
// Enable token burning by users
////////////////

    function enableBurning(bool _burningEnabled) public onlyController {
        burningEnabled = _burningEnabled;
    }

    function burnAndRetrieve(uint256 _tokensToBurn) public returns (bool success) {
        require(burningEnabled);

        var previousBalanceFrom = balanceOfAt(msg.sender, block.number);
        if (previousBalanceFrom < _tokensToBurn) {
            return false;
        }

        // Alerts the token controller of the burn function call
        // If enabled, controller will distribute fees and destroy tokens
        // Or any other logic chosen by controller
        if (isContract(controller)) {
            require(TokenController(controller).onBurn(msg.sender, _tokensToBurn));
        }

        Burned(msg.sender, _tokensToBurn);
        return true;
    }

    event Burned(address indexed who, uint256 _amount);

}

Contract Security Audit

Contract ABI

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

000000000000000000000000003ea7f54b6dcf6cee86986edc18143a35f15505000000000000000000000000c6cde7c39eb2f0f0095f41570af89efc2c1ea828

-----Decoded View---------------
Arg [0] : _tokenFactory (address): 0x003ea7f54b6dcf6cee86986edc18143a35f15505
Arg [1] : efxVaultWallet (address): 0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000003ea7f54b6dcf6cee86986edc18143a35f15505
Arg [1] : 000000000000000000000000c6cde7c39eb2f0f0095f41570af89efc2c1ea828


Swarm Source

bzzr://4db47d58225ebd4932a0591fcb5c919419c7de9daf2717485611388c10f2ecd0
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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