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Aragon
Aragon
ICO
Create value without borders or intermediaries
类别: 软件
设立: 2017年5月16日
国家: Spain
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关于ICO 信息

框架 Ethereum
收到 ETH
开始日期 2017年5月17日
结束日期 2017年5月17日
代币的价格 1 ANT =
发行的代币 39 609 524
最低的计划
硬帽
提高
最低金额 0 ANT
标志 ANT - 0.7383839939$ 贸易
17.05.2017 17.05.2017
100.00%
ANT (ANT)
ANT (ANT)
Token
Ethereum
Utility
ERC-20
Platform: Ethereum
贸易 -
Main - 令牌分发
聪明的合同 - Aragon
pragma solidity ^0.4.8;

contract ERC20 {
  function totalSupply() constant returns (uint);
  function balanceOf(address who) constant returns (uint);
  function allowance(address owner, address spender) constant returns (uint);

  function transfer(address to, uint value) returns (bool ok);
  function transferFrom(address from, address to, uint value) returns (bool ok);
  function approve(address spender, uint value) returns (bool ok);
  event Transfer(address indexed from, address indexed to, uint value);
  event Approval(address indexed owner, address indexed spender, uint value);
}


contract SafeMath {
  function safeMul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

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

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

  function safeAdd(uint a, uint b) internal returns (uint) {
    uint c = a + b;
    assert(c>=a && c>=b);
    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;
    }
  }
}
contract ApproveAndCallReceiver {
    function receiveApproval(address _from, uint256 _amount, address _token, bytes _data);
}

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

    address public controller;

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

    /// @notice Changes the controller of the contract
    /// @param _newController The new controller of the contract
    function changeController(address _newController) onlyController {
        controller = _newController;
    }
}
contract AbstractSale {
  function saleFinalized() constant returns (bool);
}

contract SaleWallet {
  // Public variables
  address public multisig;
  uint public finalBlock;
  AbstractSale public tokenSale;

  // @dev Constructor initializes public variables
  // @param _multisig The address of the multisig that will receive the funds
  // @param _finalBlock Block after which the multisig can request the funds
  function SaleWallet(address _multisig, uint _finalBlock, address _tokenSale) {
    multisig = _multisig;
    finalBlock = _finalBlock;
    tokenSale = AbstractSale(_tokenSale);
  }

  // @dev Receive all sent funds without any further logic
  function () public payable {}

  // @dev Withdraw function sends all the funds to the wallet if conditions are correct
  function withdraw() public {
    if (msg.sender != multisig) throw;                       // Only the multisig can request it
    if (block.number > finalBlock) return doWithdraw();      // Allow after the final block
    if (tokenSale.saleFinalized()) return doWithdraw();      // Allow when sale is finalized
  }

  function doWithdraw() internal {
    if (!multisig.send(this.balance)) throw;
  }
}

contract Controller {
    /// @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) 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) 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)
        returns(bool);
}

contract ANPlaceholder is Controller {
  address public sale;
  ANT public token;

  function ANPlaceholder(address _sale, address _ant) {
    sale = _sale;
    token = ANT(_ant);
  }

  function changeController(address network) public {
    if (msg.sender != sale) throw;
    token.changeController(network);
    suicide(network);
  }

  // In between the sale and the network. Default settings for allowing token transfers.
  function proxyPayment(address _owner) payable public returns (bool) {
    throw;
    return false;
  }

  function onTransfer(address _from, address _to, uint _amount) public returns (bool) {
    return true;
  }

  function onApprove(address _owner, address _spender, uint _amount) public returns (bool) {
    return true;
  }
}




contract MiniMeToken is ERC20, 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 = 'MMT_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;

    // 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
    ) {
        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
///////////////////

    /// @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) returns (bool success) {
        if (!transfersEnabled) throw;
        return doTransfer(msg.sender, _to, _amount);
    }

    /// @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
    ) 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) {
            if (!transfersEnabled) throw;

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

    /// @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 returns(bool) {

           if (_amount == 0) {
               return true;
           }

           // Do not allow transfer to 0x0 or the token contract itself
           if ((_to == 0) || (_to == address(this))) throw;

           // If the amount being transfered is more than the balance of the
           //  account the transfer returns false
           var previousBalanceFrom = balanceOfAt(_from, block.number);
           if (previousBalanceFrom < _amount) {
               throw;
           }

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

           // 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);
           if (previousBalanceTo + _amount < previousBalanceTo) throw; // Check for overflow
           updateValueAtNow(balances[_to], previousBalanceTo + _amount);

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

           return true;
    }

    /// @param _owner The address that's balance is being requested
    /// @return The balance of `_owner` at the current block
    function balanceOf(address _owner) 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) returns (bool success) {
        if (!transfersEnabled) throw;

        // 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 ((_amount!=0) && (allowed[msg.sender][_spender] !=0)) throw;

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

        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
    ) 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
    ) returns (bool success) {
        approve(_spender, _amount);

        // This portion is copied from ConsenSys's Standard Token Contract. It
        //  calls the receiveApproval function that is part of the contract that
        //  is being approved (`_spender`). The function should look like:
        //  `receiveApproval(address _from, uint256 _amount, address
        //  _tokenContract, bytes _extraData)` It is assumed that the call
        //  *should* succeed, otherwise the plain vanilla approve would be used
        ApproveAndCallReceiver(_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() 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) 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) 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);
        }
    }

    function min(uint a, uint b) internal returns (uint) {
      return a < b ? a : b;
    }

////////////////
// 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 higher 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
        ) returns(address) {
        if (_snapshotBlock > block.number) _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
    ) onlyController returns (bool) {
        uint curTotalSupply = getValueAt(totalSupplyHistory, block.number);
        if (curTotalSupply + _amount < curTotalSupply) throw; // Check for overflow
        updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
        var previousBalanceTo = balanceOf(_owner);
        if (previousBalanceTo + _amount < previousBalanceTo) throw; // Check for overflow
        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 returns (bool) {
        uint curTotalSupply = getValueAt(totalSupplyHistory, block.number);
        if (curTotalSupply < _amount) throw;
        updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount);
        var previousBalanceFrom = balanceOf(_owner);
        if (previousBalanceFrom < _amount) throw;
        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) 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 newCheckPoint = checkpoints[ checkpoints.length++ ];
               newCheckPoint.fromBlock =  uint128(block.number);
               newCheckPoint.value = uint128(_value);
           } else {
               Checkpoint 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;
    }

    /// @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 ()  payable {
        if (isContract(controller)) {
            if (! Controller(controller).proxyPayment.value(msg.value)(msg.sender))
                throw;
        } else {
            throw;
        }
    }


////////////////
// Events
////////////////
    event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock);
}


////////////////
// 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
    ) returns (MiniMeToken) {
        MiniMeToken newToken = new MiniMeToken(
            this,
            _parentToken,
            _snapshotBlock,
            _tokenName,
            _decimalUnits,
            _tokenSymbol,
            _transfersEnabled
            );

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


/*
    Copyright 2017, Jorge Izquierdo (Aragon Foundation)

    Based on VestedToken.sol from https://github.com/OpenZeppelin/zeppelin-solidity

    SafeMath – Copyright (c) 2016 Smart Contract Solutions, Inc.
    MiniMeToken – Copyright 2017, Jordi Baylina (Giveth)
 */

// @dev MiniMeIrrevocableVestedToken is a derived version of MiniMeToken adding the
// ability to createTokenGrants which are basically a transfer that limits the
// receiver of the tokens how can he spend them over time.

// For simplicity, token grants are not saved in MiniMe type checkpoints.
// Vanilla cloning ANT will clone it into a MiniMeToken without vesting.
// More complex cloning could account for past vesting calendars.

contract MiniMeIrrevocableVestedToken is MiniMeToken, SafeMath {
  // Keep the struct at 2 sstores (1 slot for value + 64 * 3 (dates) + 20 (address) = 2 slots (2nd slot is 212 bytes, lower than 256))
  struct TokenGrant {
    address granter;
    uint256 value;
    uint64 cliff;
    uint64 vesting;
    uint64 start;
  }

  event NewTokenGrant(address indexed from, address indexed to, uint256 value, uint64 start, uint64 cliff, uint64 vesting);

  mapping (address => TokenGrant[]) public grants;

  mapping (address => bool) canCreateGrants;
  address vestingWhitelister;

  modifier canTransfer(address _sender, uint _value) {
    if (_value > spendableBalanceOf(_sender)) throw;
    _;
  }

  modifier onlyVestingWhitelister {
    if (msg.sender != vestingWhitelister) throw;
    _;
  }

  function MiniMeIrrevocableVestedToken (
      address _tokenFactory,
      address _parentToken,
      uint _parentSnapShotBlock,
      string _tokenName,
      uint8 _decimalUnits,
      string _tokenSymbol,
      bool _transfersEnabled
  ) MiniMeToken(_tokenFactory, _parentToken, _parentSnapShotBlock, _tokenName, _decimalUnits, _tokenSymbol, _transfersEnabled) {
    vestingWhitelister = msg.sender;
    doSetCanCreateGrants(vestingWhitelister, true);
  }

  // @dev Add canTransfer modifier before allowing transfer and transferFrom to go through
  function transfer(address _to, uint _value)
           canTransfer(msg.sender, _value)
           public
           returns (bool success) {
    return super.transfer(_to, _value);
  }

  function transferFrom(address _from, address _to, uint _value)
           canTransfer(_from, _value)
           public
           returns (bool success) {
    return super.transferFrom(_from, _to, _value);
  }

  function spendableBalanceOf(address _holder) constant public returns (uint) {
    return transferableTokens(_holder, uint64(now));
  }

  function grantVestedTokens(
    address _to,
    uint256 _value,
    uint64 _start,
    uint64 _cliff,
    uint64 _vesting) public {

    // Check start, cliff and vesting are properly order to ensure correct functionality of the formula.
    if (_cliff < _start) throw;
    if (_vesting < _start) throw;
    if (_vesting < _cliff) throw;

    if (!canCreateGrants[msg.sender]) throw;
    if (tokenGrantsCount(_to) > 20) throw;   // To prevent a user being spammed and have his balance locked (out of gas attack when calculating vesting).

    TokenGrant memory grant = TokenGrant(msg.sender, _value, _cliff, _vesting, _start);
    grants[_to].push(grant);

    if (!transfer(_to, _value)) throw;

    NewTokenGrant(msg.sender, _to, _value, _cliff, _vesting, _start);
  }

  function setCanCreateGrants(address _addr, bool _allowed)
           onlyVestingWhitelister public {
    doSetCanCreateGrants(_addr, _allowed);
  }

  function doSetCanCreateGrants(address _addr, bool _allowed)
           internal {
    canCreateGrants[_addr] = _allowed;
  }

  function changeVestingWhitelister(address _newWhitelister) onlyVestingWhitelister public {
    doSetCanCreateGrants(vestingWhitelister, false);
    vestingWhitelister = _newWhitelister;
    doSetCanCreateGrants(vestingWhitelister, true);
  }

  // @dev Not allow token grants
  function revokeTokenGrant(address _holder, uint _grantId) public {
    throw;
  }

  //
  function tokenGrantsCount(address _holder) constant public returns (uint index) {
    return grants[_holder].length;
  }

  function tokenGrant(address _holder, uint _grantId) constant public returns (address granter, uint256 value, uint256 vested, uint64 start, uint64 cliff, uint64 vesting) {
    TokenGrant grant = grants[_holder][_grantId];

    granter = grant.granter;
    value = grant.value;
    start = grant.start;
    cliff = grant.cliff;
    vesting = grant.vesting;

    vested = vestedTokens(grant, uint64(now));
  }

  function vestedTokens(TokenGrant grant, uint64 time) internal constant returns (uint256) {
    return calculateVestedTokens(
      grant.value,
      uint256(time),
      uint256(grant.start),
      uint256(grant.cliff),
      uint256(grant.vesting)
    );
  }

  //  transferableTokens
  //   |                         _/--------   NonVestedTokens
  //   |                       _/
  //   |                     _/
  //   |                   _/
  //   |                 _/
  //   |                /
  //   |              .|
  //   |            .  |
  //   |          .    |
  //   |        .      |
  //   |      .        |
  //   |    .          |
  //   +===+===========+---------+----------> time
  //      Start       Clift    Vesting

  function calculateVestedTokens(
    uint256 tokens,
    uint256 time,
    uint256 start,
    uint256 cliff,
    uint256 vesting) internal constant returns (uint256)
    {

    // Shortcuts for before cliff and after vesting cases.
    if (time < cliff) return 0;
    if (time >= vesting) return tokens;

    // Interpolate all vested tokens.
    // As before cliff the shortcut returns 0, we can use just this function to
    // calculate it.

    // vestedTokens = tokens * (time - start) / (vesting - start)
    uint256 vestedTokens = safeDiv(
                                  safeMul(
                                    tokens,
                                    safeSub(time, start)
                                    ),
                                  safeSub(vesting, start)
                                  );

    return vestedTokens;
  }

  function nonVestedTokens(TokenGrant grant, uint64 time) internal constant returns (uint256) {
    // Of all the tokens of the grant, how many of them are not vested?
    // grantValue - vestedTokens
    return safeSub(grant.value, vestedTokens(grant, time));
  }

  // @dev The date in which all tokens are transferable for the holder
  // Useful for displaying purposes (not used in any logic calculations)
  function lastTokenIsTransferableDate(address holder) constant public returns (uint64 date) {
    date = uint64(now);
    uint256 grantIndex = tokenGrantsCount(holder);
    for (uint256 i = 0; i < grantIndex; i++) {
      date = max64(grants[holder][i].vesting, date);
    }
    return date;
  }

  // @dev How many tokens can a holder transfer at a point in time
  function transferableTokens(address holder, uint64 time) constant public returns (uint256) {
    uint256 grantIndex = tokenGrantsCount(holder);

    if (grantIndex == 0) return balanceOf(holder); // shortcut for holder without grants

    // Iterate through all the grants the holder has, and add all non-vested tokens
    uint256 nonVested = 0;
    for (uint256 i = 0; i < grantIndex; i++) {
      nonVested = safeAdd(nonVested, nonVestedTokens(grants[holder][i], time));
    }

    // Balance - totalNonVested is the amount of tokens a holder can transfer at any given time
    return safeSub(balanceOf(holder), nonVested);
  }
}

/*
    Copyright 2017, Jorge Izquierdo (Aragon Foundation)
*/

contract ANT is MiniMeIrrevocableVestedToken {
  // @dev ANT constructor just parametrizes the MiniMeIrrevocableVestedToken constructor
  function ANT(
    address _tokenFactory
  ) MiniMeIrrevocableVestedToken(
    _tokenFactory,
    0x0,                    // no parent token
    0,                      // no snapshot block number from parent
    "Aragon Network Token", // Token name
    18,                     // Decimals
    "ANT",                  // Symbol
    true                    // Enable transfers
    ) {}
}
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