Contract Overview |  GeminiDollar
Balance: 0 Ether
Ether Value: $0
Transactions: 965 txns
Token Tracker: Gemini dollar (GUSD)
Misc:
Address Watch: Add To Watch List
Contract Creator: 0x4c2f150fc90fed3d8281114c2349f1906cde5346at txn 0xf51a232b0e5604aa3549f5d22fd470971a627d55536eb7477b39a80b5c38b01b
Token Balance:
 Latest 25 txns From a total of 965 Transactions
(+1 PendingTxn)

TxHash Age From To Value [TxFee]
0xc3d1eadc8a741fe59fc97c72c668fd329ddd0d5c42f35fa5f4060812b5dde580(pending)0xa21bc46788e22d0501f45a977275a0e050a1fa13  IN  0x056fd409e1d7a124bd7017459dfea2f387b6d5cd0 Ether(Pending)
0xa702bf4954e2720ecd1cd08d5476fd9093e7445eedbd797f53b5b4a3ccee40a726 mins agoOkex_1  IN   GeminiDollar0 Ether0.0032511
0x780c30483140004a8aebe3a43e70ce50171a5a1f5cec1fd75ca86fbe086f108829 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025043
0x0f59a6a47a47decd7a427e5c5099d3f848727a50bb5567c2d10c8be4e051cbc135 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025011
0xcdc9b0392f010e9185bc73ccd2cb7d020826572d73ae0701aa1faef2d2174c3545 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025011
0x7d68be2b85e4a92954e219f7a6c7ca759c0a81f4a700d05852882f9872cd6cb345 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000354843562
0xe779ff7e1ccac1643043ca37cd3e5c4b9ef913914f39b177216e6946c0557f1a51 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000449622
0x193eeab7a8083168176a2c8af5edf7a4f083c9af0c8de9dac2c5b9466110313256 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.00050022
0xa61758f462ca0ab3244e3b3596d11f5c1eb699151418c7d2707797d74992131157 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000520176
0xa34a72a15b132ecb782040b23255f0857e13c236b9394a09097b8fba47052c3e57 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000350602
0x8a5a0df9e17b7cb1e746af8a5bf6aeb1baa6926d64a1f00df42b62a7a39c73f558 mins agoOkex_1  IN   GeminiDollar0 Ether0.0032511
0xd79e4663297e2f769bb500956e997325cdc7ea4118a18f54bb0895e7ee03086458 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025043
0xd7c782b8049ad1fb8b6b0b8bd6275425143dc2fa3044c4679b6356aa61d4dede1 hr 3 mins agoOkex_1  IN   GeminiDollar0 Ether0.0032511
0x966936e2ed236db79e25c9d5230448e692c085dab7cb19d9864a2843cf2a26dd1 hr 6 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000357973
0x2b8929e0dd1428b67d76108ff0d800ab7dbcf8bec8bd1c830e95ed7edd92059e1 hr 14 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025011
0x8978754f77ec1a4603cc5776e57c0dcba978e27f09295d8084dba585808d98361 hr 14 mins agoOkex_1  IN   GeminiDollar0 Ether0.0032511
0x551dd129c29904ed8276975067228e38840ed468c6cee544fc9fbed9f6f773df1 hr 27 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.00032511
0x2aaaef8d8a807e71362bc8e5e9d5965b42f8c36fcf3200c70ba8a800714a54511 hr 28 mins agoOkex_1  IN   GeminiDollar0 Ether0.0025011
0x5bc8af423fae8a55046484343f66e36f19efcdb64a9421b4cedaa6b4fa7c3d811 hr 32 mins agoHitBTC_2  IN   GeminiDollar0 Ether0.000324727
0x8f91ffe2a9d334669d7266c5f5ac7ac017be3effc13c2c9f2c8420099282a4a51 hr 34 mins ago0x2559ecc6b853033106c038acd62e3084100be542  IN   GeminiDollar0 Ether0.00052778375
0xb07b88056d6f66f312c6ee8d59a93b0672290a0d307d1bf564b7f309641c9d5e1 hr 38 mins agoOkex_1  IN   GeminiDollar0 Ether0.0032511
0x59a6fcde7dc309afdb4577beebefe12e56be622f2b2a06763dc5519d072666c41 hr 45 mins agoBibox  IN   GeminiDollar0 Ether0.00200344
0x85218802144c1bfbbb1154daacdf9b3d2caddaba0731e1f9506c9103b5bd65ea1 hr 46 mins ago0xa688c4a155c1579af484b959eebafb9dbd989c44  IN   GeminiDollar0 Ether0.00400688
0xbb9993876d070063c3883330afd5accfa0175cb4a400d0ac54768b2329c68e291 hr 46 mins ago0xc9195c206511356ce12c6d3b09e83c07f1fccd34  IN   GeminiDollar0 Ether0.00400688
0xa98d8b26d4cbde6e422bfde05bdb4094a13594ca0475b700640266466e7cf6eb1 hr 49 mins ago0xbf3d39c03b8eb95ff447a2a4e9fe3d80365a9ecb  IN   GeminiDollar0 Ether0.00099916
[ Download CSV Export  ] 
 Internal Transactions as a result of Contract Execution
View All
ParentTxHash Block Age From To Value
Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity), NestedArrayFunctionCallDecoder (medium-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Exact Match)
Contract Name: ERC20Proxy
Compiler Text: v0.4.21+commit.dfe3193c
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

pragma solidity ^0.4.21;

/** @title  A contract for generating unique identifiers
  *
  * @notice  A contract that provides a identifier generation scheme,
  * guaranteeing uniqueness across all contracts that inherit from it,
  * as well as unpredictability of future identifiers.
  *
  * @dev  This contract is intended to be inherited by any contract that
  * implements the callback software pattern for cooperative custodianship.
  *
  * @author  Gemini Trust Company, LLC
  */
contract LockRequestable {

    // MEMBERS
    /// @notice  the count of all invocations of `generateLockId`.
    uint256 public lockRequestCount;

    // CONSTRUCTOR
    function LockRequestable() public {
        lockRequestCount = 0;
    }

    // FUNCTIONS
    /** @notice  Returns a fresh unique identifier.
      *
      * @dev the generation scheme uses three components.
      * First, the blockhash of the previous block.
      * Second, the deployed address.
      * Third, the next value of the counter.
      * This ensure that identifiers are unique across all contracts
      * following this scheme, and that future identifiers are
      * unpredictable.
      *
      * @return a 32-byte unique identifier.
      */
    function generateLockId() internal returns (bytes32 lockId) {
        return keccak256(block.blockhash(block.number - 1), address(this), ++lockRequestCount);
    }
}


/** @title  A contract to inherit upgradeable custodianship.
  *
  * @notice  A contract that provides re-usable code for upgradeable
  * custodianship. That custodian may be an account or another contract.
  *
  * @dev  This contract is intended to be inherited by any contract
  * requiring a custodian to control some aspect of its functionality.
  * This contract provides the mechanism for that custodianship to be
  * passed from one custodian to the next.
  *
  * @author  Gemini Trust Company, LLC
  */
contract CustodianUpgradeable is LockRequestable {

    // TYPES
    /// @dev  The struct type for pending custodian changes.
    struct CustodianChangeRequest {
        address proposedNew;
    }

    // MEMBERS
    /// @dev  The address of the account or contract that acts as the custodian.
    address public custodian;

    /// @dev  The map of lock ids to pending custodian changes.
    mapping (bytes32 => CustodianChangeRequest) public custodianChangeReqs;

    // CONSTRUCTOR
    function CustodianUpgradeable(
        address _custodian
    )
      LockRequestable()
      public
    {
        custodian = _custodian;
    }

    // MODIFIERS
    modifier onlyCustodian {
        require(msg.sender == custodian);
        _;
    }

    // PUBLIC FUNCTIONS
    // (UPGRADE)

    /** @notice  Requests a change of the custodian associated with this contract.
      *
      * @dev  Returns a unique lock id associated with the request.
      * Anyone can call this function, but confirming the request is authorized
      * by the custodian.
      *
      * @param  _proposedCustodian  The address of the new custodian.
      * @return  lockId  A unique identifier for this request.
      */
    function requestCustodianChange(address _proposedCustodian) public returns (bytes32 lockId) {
        require(_proposedCustodian != address(0));

        lockId = generateLockId();

        custodianChangeReqs[lockId] = CustodianChangeRequest({
            proposedNew: _proposedCustodian
        });

        emit CustodianChangeRequested(lockId, msg.sender, _proposedCustodian);
    }

    /** @notice  Confirms a pending change of the custodian associated with this contract.
      *
      * @dev  When called by the current custodian with a lock id associated with a
      * pending custodian change, the `address custodian` member will be updated with the
      * requested address.
      *
      * @param  _lockId  The identifier of a pending change request.
      */
    function confirmCustodianChange(bytes32 _lockId) public onlyCustodian {
        custodian = getCustodianChangeReq(_lockId);

        delete custodianChangeReqs[_lockId];

        emit CustodianChangeConfirmed(_lockId, custodian);
    }

    // PRIVATE FUNCTIONS
    function getCustodianChangeReq(bytes32 _lockId) private view returns (address _proposedNew) {
        CustodianChangeRequest storage changeRequest = custodianChangeReqs[_lockId];

        // reject ‘null’ results from the map lookup
        // this can only be the case if an unknown `_lockId` is received
        require(changeRequest.proposedNew != 0);

        return changeRequest.proposedNew;
    }

    /// @dev  Emitted by successful `requestCustodianChange` calls.
    event CustodianChangeRequested(
        bytes32 _lockId,
        address _msgSender,
        address _proposedCustodian
    );

    /// @dev Emitted by successful `confirmCustodianChange` calls.
    event CustodianChangeConfirmed(bytes32 _lockId, address _newCustodian);
}


/** @title  A contract to inherit upgradeable token implementations.
  *
  * @notice  A contract that provides re-usable code for upgradeable
  * token implementations. It itself inherits from `CustodianUpgradable`
  * as the upgrade process is controlled by the custodian.
  *
  * @dev  This contract is intended to be inherited by any contract
  * requiring a reference to the active token implementation, either
  * to delegate calls to it, or authorize calls from it. This contract
  * provides the mechanism for that implementation to be be replaced,
  * which constitutes an implementation upgrade.
  *
  * @author Gemini Trust Company, LLC
  */
contract ERC20ImplUpgradeable is CustodianUpgradeable  {

    // TYPES
    /// @dev  The struct type for pending implementation changes.
    struct ImplChangeRequest {
        address proposedNew;
    }

    // MEMBERS
    // @dev  The reference to the active token implementation.
    ERC20Impl public erc20Impl;

    /// @dev  The map of lock ids to pending implementation changes.
    mapping (bytes32 => ImplChangeRequest) public implChangeReqs;

    // CONSTRUCTOR
    function ERC20ImplUpgradeable(address _custodian) CustodianUpgradeable(_custodian) public {
        erc20Impl = ERC20Impl(0x0);
    }

    // MODIFIERS
    modifier onlyImpl {
        require(msg.sender == address(erc20Impl));
        _;
    }

    // PUBLIC FUNCTIONS
    // (UPGRADE)
    /** @notice  Requests a change of the active implementation associated
      * with this contract.
      *
      * @dev  Returns a unique lock id associated with the request.
      * Anyone can call this function, but confirming the request is authorized
      * by the custodian.
      *
      * @param  _proposedImpl  The address of the new active implementation.
      * @return  lockId  A unique identifier for this request.
      */
    function requestImplChange(address _proposedImpl) public returns (bytes32 lockId) {
        require(_proposedImpl != address(0));

        lockId = generateLockId();

        implChangeReqs[lockId] = ImplChangeRequest({
            proposedNew: _proposedImpl
        });

        emit ImplChangeRequested(lockId, msg.sender, _proposedImpl);
    }

    /** @notice  Confirms a pending change of the active implementation
      * associated with this contract.
      *
      * @dev  When called by the custodian with a lock id associated with a
      * pending change, the `ERC20Impl erc20Impl` member will be updated
      * with the requested address.
      *
      * @param  _lockId  The identifier of a pending change request.
      */
    function confirmImplChange(bytes32 _lockId) public onlyCustodian {
        erc20Impl = getImplChangeReq(_lockId);

        delete implChangeReqs[_lockId];

        emit ImplChangeConfirmed(_lockId, address(erc20Impl));
    }

    // PRIVATE FUNCTIONS
    function getImplChangeReq(bytes32 _lockId) private view returns (ERC20Impl _proposedNew) {
        ImplChangeRequest storage changeRequest = implChangeReqs[_lockId];

        // reject ‘null’ results from the map lookup
        // this can only be the case if an unknown `_lockId` is received
        require(changeRequest.proposedNew != address(0));

        return ERC20Impl(changeRequest.proposedNew);
    }

    /// @dev  Emitted by successful `requestImplChange` calls.
    event ImplChangeRequested(
        bytes32 _lockId,
        address _msgSender,
        address _proposedImpl
    );

    /// @dev Emitted by successful `confirmImplChange` calls.
    event ImplChangeConfirmed(bytes32 _lockId, address _newImpl);
}


contract ERC20Interface {
  // METHODS

  // NOTE:
  //   public getter functions are not currently recognised as an
  //   implementation of the matching abstract function by the compiler.

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#name
  // function name() public view returns (string);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#symbol
  // function symbol() public view returns (string);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#totalsupply
  // function decimals() public view returns (uint8);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#totalsupply
  function totalSupply() public view returns (uint256);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#balanceof
  function balanceOf(address _owner) public view returns (uint256 balance);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#transfer
  function transfer(address _to, uint256 _value) public returns (bool success);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#transferfrom
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#approve
  function approve(address _spender, uint256 _value) public returns (bool success);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#allowance
  function allowance(address _owner, address _spender) public view returns (uint256 remaining);

  // EVENTS
  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#transfer-1
  event Transfer(address indexed _from, address indexed _to, uint256 _value);

  // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md#approval
  event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}


/** @title  Public interface to ERC20 compliant token.
  *
  * @notice  This contract is a permanent entry point to an ERC20 compliant
  * system of contracts.
  *
  * @dev  This contract contains no business logic and instead
  * delegates to an instance of ERC20Impl. This contract also has no storage
  * that constitutes the operational state of the token. This contract is
  * upgradeable in the sense that the `custodian` can update the
  * `erc20Impl` address, thus redirecting the delegation of business logic.
  * The `custodian` is also authorized to pass custodianship.
  *
  * @author  Gemini Trust Company, LLC
  */
contract ERC20Proxy is ERC20Interface, ERC20ImplUpgradeable {

    // MEMBERS
    /// @notice  Returns the name of the token.
    string public name;

    /// @notice  Returns the symbol of the token.
    string public symbol;

    /// @notice  Returns the number of decimals the token uses.
    uint8 public decimals;

    // CONSTRUCTOR
    function ERC20Proxy(
        string _name,
        string _symbol,
        uint8 _decimals,
        address _custodian
    )
        ERC20ImplUpgradeable(_custodian)
        public
    {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
    }

    // PUBLIC FUNCTIONS
    // (ERC20Interface)
    /** @notice  Returns the total token supply.
      *
      * @return  the total token supply.
      */
    function totalSupply() public view returns (uint256) {
        return erc20Impl.totalSupply();
    }

    /** @notice  Returns the account balance of another account with address
      * `_owner`.
      *
      * @return  balance  the balance of account with address `_owner`.
      */
    function balanceOf(address _owner) public view returns (uint256 balance) {
        return erc20Impl.balanceOf(_owner);
    }

    /** @dev Internal use only.
      */
    function emitTransfer(address _from, address _to, uint256 _value) public onlyImpl {
        emit Transfer(_from, _to, _value);
    }

    /** @notice  Transfers `_value` amount of tokens to address `_to`.
      *
      * @dev Will fire the `Transfer` event. Will revert if the `_from`
      * account balance does not have enough tokens to spend.
      *
      * @return  success  true if transfer completes.
      */
    function transfer(address _to, uint256 _value) public returns (bool success) {
        return erc20Impl.transferWithSender(msg.sender, _to, _value);
    }

    /** @notice  Transfers `_value` amount of tokens from address `_from`
      * to address `_to`.
      *
      * @dev  Will fire the `Transfer` event. Will revert unless the `_from`
      * account has deliberately authorized the sender of the message
      * via some mechanism.
      *
      * @return  success  true if transfer completes.
      */
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        return erc20Impl.transferFromWithSender(msg.sender, _from, _to, _value);
    }

    /** @dev Internal use only.
      */
    function emitApproval(address _owner, address _spender, uint256 _value) public onlyImpl {
        emit Approval(_owner, _spender, _value);
    }

    /** @notice  Allows `_spender` to withdraw from your account multiple times,
      * up to the `_value` amount. If this function is called again it
      * overwrites the current allowance with _value.
      *
      * @dev  Will fire the `Approval` event.
      *
      * @return  success  true if approval completes.
      */
    function approve(address _spender, uint256 _value) public returns (bool success) {
        return erc20Impl.approveWithSender(msg.sender, _spender, _value);
    }

    /** @notice Increases the amount `_spender` is allowed to withdraw from
      * your account.
      * This function is implemented to avoid the race condition in standard
      * ERC20 contracts surrounding the `approve` method.
      *
      * @dev  Will fire the `Approval` event. This function should be used instead of
      * `approve`.
      *
      * @return  success  true if approval completes.
      */
    function increaseApproval(address _spender, uint256 _addedValue) public returns (bool success) {
        return erc20Impl.increaseApprovalWithSender(msg.sender, _spender, _addedValue);
    }

    /** @notice  Decreases the amount `_spender` is allowed to withdraw from
      * your account. This function is implemented to avoid the race
      * condition in standard ERC20 contracts surrounding the `approve` method.
      *
      * @dev  Will fire the `Approval` event. This function should be used
      * instead of `approve`.
      *
      * @return  success  true if approval completes.
      */
    function decreaseApproval(address _spender, uint256 _subtractedValue) public returns (bool success) {
        return erc20Impl.decreaseApprovalWithSender(msg.sender, _spender, _subtractedValue);
    }

    /** @notice  Returns how much `_spender` is currently allowed to spend from
      * `_owner`'s balance.
      *
      * @return  remaining  the remaining allowance.
      */
    function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
        return erc20Impl.allowance(_owner, _spender);
    }
}


/** @title  ERC20 compliant token intermediary contract holding core logic.
  *
  * @notice  This contract serves as an intermediary between the exposed ERC20
  * interface in ERC20Proxy and the store of balances in ERC20Store. This
  * contract contains core logic that the proxy can delegate to
  * and that the store is called by.
  *
  * @dev  This contract contains the core logic to implement the
  * ERC20 specification as well as several extensions.
  * 1. Changes to the token supply.
  * 2. Batched transfers.
  * 3. Relative changes to spending approvals.
  * 4. Delegated transfer control ('sweeping').
  *
  * @author  Gemini Trust Company, LLC
  */
contract ERC20Impl is CustodianUpgradeable {

    // TYPES
    /// @dev  The struct type for pending increases to the token supply (print).
    struct PendingPrint {
        address receiver;
        uint256 value;
    }

    // MEMBERS
    /// @dev  The reference to the proxy.
    ERC20Proxy public erc20Proxy;

    /// @dev  The reference to the store.
    ERC20Store public erc20Store;

    /// @dev  The sole authorized caller of delegated transfer control ('sweeping').
    address public sweeper;

    /** @dev  The static message to be signed by an external account that
      * signifies their permission to forward their balance to any arbitrary
      * address. This is used to consolidate the control of all accounts
      * backed by a shared keychain into the control of a single key.
      * Initialized as the concatenation of the address of this contract
      * and the word "sweep". This concatenation is done to prevent a replay
      * attack in a subsequent contract, where the sweep message could
      * potentially be replayed to re-enable sweeping ability.
      */
    bytes32 public sweepMsg;

    /** @dev  The mapping that stores whether the address in question has
      * enabled sweeping its contents to another account or not.
      * If an address maps to "true", it has already enabled sweeping,
      * and thus does not need to re-sign the `sweepMsg` to enact the sweep.
      */
    mapping (address => bool) public sweptSet;

    /// @dev  The map of lock ids to pending token increases.
    mapping (bytes32 => PendingPrint) public pendingPrintMap;

    // CONSTRUCTOR
    function ERC20Impl(
          address _erc20Proxy,
          address _erc20Store,
          address _custodian,
          address _sweeper
    )
        CustodianUpgradeable(_custodian)
        public
    {
        require(_sweeper != 0);
        erc20Proxy = ERC20Proxy(_erc20Proxy);
        erc20Store = ERC20Store(_erc20Store);

        sweeper = _sweeper;
        sweepMsg = keccak256(address(this), "sweep");
    }

    // MODIFIERS
    modifier onlyProxy {
        require(msg.sender == address(erc20Proxy));
        _;
    }
    modifier onlySweeper {
        require(msg.sender == sweeper);
        _;
    }


    /** @notice  Core logic of the ERC20 `approve` function.
      *
      * @dev  This function can only be called by the referenced proxy,
      * which has an `approve` function.
      * Every argument passed to that function as well as the original
      * `msg.sender` gets passed to this function.
      * NOTE: approvals for the zero address (unspendable) are disallowed.
      *
      * @param  _sender  The address initiating the approval in proxy.
      */
    function approveWithSender(
        address _sender,
        address _spender,
        uint256 _value
    )
        public
        onlyProxy
        returns (bool success)
    {
        require(_spender != address(0)); // disallow unspendable approvals
        erc20Store.setAllowance(_sender, _spender, _value);
        erc20Proxy.emitApproval(_sender, _spender, _value);
        return true;
    }

    /** @notice  Core logic of the `increaseApproval` function.
      *
      * @dev  This function can only be called by the referenced proxy,
      * which has an `increaseApproval` function.
      * Every argument passed to that function as well as the original
      * `msg.sender` gets passed to this function.
      * NOTE: approvals for the zero address (unspendable) are disallowed.
      *
      * @param  _sender  The address initiating the approval.
      */
    function increaseApprovalWithSender(
        address _sender,
        address _spender,
        uint256 _addedValue
    )
        public
        onlyProxy
        returns (bool success)
    {
        require(_spender != address(0)); // disallow unspendable approvals
        uint256 currentAllowance = erc20Store.allowed(_sender, _spender);
        uint256 newAllowance = currentAllowance + _addedValue;

        require(newAllowance >= currentAllowance);

        erc20Store.setAllowance(_sender, _spender, newAllowance);
        erc20Proxy.emitApproval(_sender, _spender, newAllowance);
        return true;
    }

    /** @notice  Core logic of the `decreaseApproval` function.
      *
      * @dev  This function can only be called by the referenced proxy,
      * which has a `decreaseApproval` function.
      * Every argument passed to that function as well as the original
      * `msg.sender` gets passed to this function.
      * NOTE: approvals for the zero address (unspendable) are disallowed.
      *
      * @param  _sender  The address initiating the approval.
      */
    function decreaseApprovalWithSender(
        address _sender,
        address _spender,
        uint256 _subtractedValue
    )
        public
        onlyProxy
        returns (bool success)
    {
        require(_spender != address(0)); // disallow unspendable approvals
        uint256 currentAllowance = erc20Store.allowed(_sender, _spender);
        uint256 newAllowance = currentAllowance - _subtractedValue;

        require(newAllowance <= currentAllowance);

        erc20Store.setAllowance(_sender, _spender, newAllowance);
        erc20Proxy.emitApproval(_sender, _spender, newAllowance);
        return true;
    }

    /** @notice  Requests an increase in the token supply, with the newly created
      * tokens to be added to the balance of the specified account.
      *
      * @dev  Returns a unique lock id associated with the request.
      * Anyone can call this function, but confirming the request is authorized
      * by the custodian.
      * NOTE: printing to the zero address is disallowed.
      *
      * @param  _receiver  The receiving address of the print, if confirmed.
      * @param  _value  The number of tokens to add to the total supply and the
      * balance of the receiving address, if confirmed.
      *
      * @return  lockId  A unique identifier for this request.
      */
    function requestPrint(address _receiver, uint256 _value) public returns (bytes32 lockId) {
        require(_receiver != address(0));

        lockId = generateLockId();

        pendingPrintMap[lockId] = PendingPrint({
            receiver: _receiver,
            value: _value
        });

        emit PrintingLocked(lockId, _receiver, _value);
    }

    /** @notice  Confirms a pending increase in the token supply.
      *
      * @dev  When called by the custodian with a lock id associated with a
      * pending increase, the amount requested to be printed in the print request
      * is printed to the receiving address specified in that same request.
      * NOTE: this function will not execute any print that would overflow the
      * total supply, but it will not revert either.
      *
      * @param  _lockId  The identifier of a pending print request.
      */
    function confirmPrint(bytes32 _lockId) public onlyCustodian {
        PendingPrint storage print = pendingPrintMap[_lockId];

        // reject ‘null’ results from the map lookup
        // this can only be the case if an unknown `_lockId` is received
        address receiver = print.receiver;
        require (receiver != address(0));
        uint256 value = print.value;

        delete pendingPrintMap[_lockId];

        uint256 supply = erc20Store.totalSupply();
        uint256 newSupply = supply + value;
        if (newSupply >= supply) {
          erc20Store.setTotalSupply(newSupply);
          erc20Store.addBalance(receiver, value);

          emit PrintingConfirmed(_lockId, receiver, value);
          erc20Proxy.emitTransfer(address(0), receiver, value);
        }
    }

    /** @notice  Burns the specified value from the sender's balance.
      *
      * @dev  Sender's balanced is subtracted by the amount they wish to burn.
      *
      * @param  _value  The amount to burn.
      *
      * @return  success  true if the burn succeeded.
      */
    function burn(uint256 _value) public returns (bool success) {
        uint256 balanceOfSender = erc20Store.balances(msg.sender);
        require(_value <= balanceOfSender);

        erc20Store.setBalance(msg.sender, balanceOfSender - _value);
        erc20Store.setTotalSupply(erc20Store.totalSupply() - _value);

        erc20Proxy.emitTransfer(msg.sender, address(0), _value);

        return true;
    }

    /** @notice  A function for a sender to issue multiple transfers to multiple
      * different addresses at once. This function is implemented for gas
      * considerations when someone wishes to transfer, as one transaction is
      * cheaper than issuing several distinct individual `transfer` transactions.
      *
      * @dev  By specifying a set of destination addresses and values, the
      * sender can issue one transaction to transfer multiple amounts to
      * distinct addresses, rather than issuing each as a separate
      * transaction. The `_tos` and `_values` arrays must be equal length, and
      * an index in one array corresponds to the same index in the other array
      * (e.g. `_tos[0]` will receive `_values[0]`, `_tos[1]` will receive
      * `_values[1]`, and so on.)
      * NOTE: transfers to the zero address are disallowed.
      *
      * @param  _tos  The destination addresses to receive the transfers.
      * @param  _values  The values for each destination address.
      * @return  success  If transfers succeeded.
      */
    function batchTransfer(address[] _tos, uint256[] _values) public returns (bool success) {
        require(_tos.length == _values.length);

        uint256 numTransfers = _tos.length;
        uint256 senderBalance = erc20Store.balances(msg.sender);

        for (uint256 i = 0; i < numTransfers; i++) {
          address to = _tos[i];
          require(to != address(0));
          uint256 v = _values[i];
          require(senderBalance >= v);

          if (msg.sender != to) {
            senderBalance -= v;
            erc20Store.addBalance(to, v);
          }
          erc20Proxy.emitTransfer(msg.sender, to, v);
        }

        erc20Store.setBalance(msg.sender, senderBalance);

        return true;
    }

    /** @notice  Enables the delegation of transfer control for many
      * accounts to the sweeper account, transferring any balances
      * as well to the given destination.
      *
      * @dev  An account delegates transfer control by signing the
      * value of `sweepMsg`. The sweeper account is the only authorized
      * caller of this function, so it must relay signatures on behalf
      * of accounts that delegate transfer control to it. Enabling
      * delegation is idempotent and permanent. If the account has a
      * balance at the time of enabling delegation, its balance is
      * also transfered to the given destination account `_to`.
      * NOTE: transfers to the zero address are disallowed.
      *
      * @param  _vs  The array of recovery byte components of the ECDSA signatures.
      * @param  _rs  The array of 'R' components of the ECDSA signatures.
      * @param  _ss  The array of 'S' components of the ECDSA signatures.
      * @param  _to  The destination for swept balances.
      */
    function enableSweep(uint8[] _vs, bytes32[] _rs, bytes32[] _ss, address _to) public onlySweeper {
        require(_to != address(0));
        require((_vs.length == _rs.length) && (_vs.length == _ss.length));

        uint256 numSignatures = _vs.length;
        uint256 sweptBalance = 0;

        for (uint256 i=0; i<numSignatures; ++i) {
          address from = ecrecover(sweepMsg, _vs[i], _rs[i], _ss[i]);

          // ecrecover returns 0 on malformed input
          if (from != address(0)) {
            sweptSet[from] = true;

            uint256 fromBalance = erc20Store.balances(from);

            if (fromBalance > 0) {
              sweptBalance += fromBalance;

              erc20Store.setBalance(from, 0);

              erc20Proxy.emitTransfer(from, _to, fromBalance);
            }
          }
        }

        if (sweptBalance > 0) {
          erc20Store.addBalance(_to, sweptBalance);
        }
    }

    /** @notice  For accounts that have delegated, transfer control
      * to the sweeper, this function transfers their balances to the given
      * destination.
      *
      * @dev The sweeper account is the only authorized caller of
      * this function. This function accepts an array of addresses to have their
      * balances transferred for gas efficiency purposes.
      * NOTE: any address for an account that has not been previously enabled
      * will be ignored.
      * NOTE: transfers to the zero address are disallowed.
      *
      * @param  _froms  The addresses to have their balances swept.
      * @param  _to  The destination address of all these transfers.
      */
    function replaySweep(address[] _froms, address _to) public onlySweeper {
        require(_to != address(0));
        uint256 lenFroms = _froms.length;
        uint256 sweptBalance = 0;

        for (uint256 i=0; i<lenFroms; ++i) {
            address from = _froms[i];

            if (sweptSet[from]) {
                uint256 fromBalance = erc20Store.balances(from);

                if (fromBalance > 0) {
                    sweptBalance += fromBalance;

                    erc20Store.setBalance(from, 0);

                    erc20Proxy.emitTransfer(from, _to, fromBalance);
                }
            }
        }

        if (sweptBalance > 0) {
            erc20Store.addBalance(_to, sweptBalance);
        }
    }

    /** @notice  Core logic of the ERC20 `transferFrom` function.
      *
      * @dev  This function can only be called by the referenced proxy,
      * which has a `transferFrom` function.
      * Every argument passed to that function as well as the original
      * `msg.sender` gets passed to this function.
      * NOTE: transfers to the zero address are disallowed.
      *
      * @param  _sender  The address initiating the transfer in proxy.
      */
    function transferFromWithSender(
        address _sender,
        address _from,
        address _to,
        uint256 _value
    )
        public
        onlyProxy
        returns (bool success)
    {
        require(_to != address(0)); // ensure burn is the cannonical transfer to 0x0

        uint256 balanceOfFrom = erc20Store.balances(_from);
        require(_value <= balanceOfFrom);

        uint256 senderAllowance = erc20Store.allowed(_from, _sender);
        require(_value <= senderAllowance);

        erc20Store.setBalance(_from, balanceOfFrom - _value);
        erc20Store.addBalance(_to, _value);

        erc20Store.setAllowance(_from, _sender, senderAllowance - _value);

        erc20Proxy.emitTransfer(_from, _to, _value);

        return true;
    }

    /** @notice  Core logic of the ERC20 `transfer` function.
      *
      * @dev  This function can only be called by the referenced proxy,
      * which has a `transfer` function.
      * Every argument passed to that function as well as the original
      * `msg.sender` gets passed to this function.
      * NOTE: transfers to the zero address are disallowed.
      *
      * @param  _sender  The address initiating the transfer in proxy.
      */
    function transferWithSender(
        address _sender,
        address _to,
        uint256 _value
    )
        public
        onlyProxy
        returns (bool success)
    {
        require(_to != address(0)); // ensure burn is the cannonical transfer to 0x0

        uint256 balanceOfSender = erc20Store.balances(_sender);
        require(_value <= balanceOfSender);

        erc20Store.setBalance(_sender, balanceOfSender - _value);
        erc20Store.addBalance(_to, _value);

        erc20Proxy.emitTransfer(_sender, _to, _value);

        return true;
    }

    // METHODS (ERC20 sub interface impl.)
    /// @notice  Core logic of the ERC20 `totalSupply` function.
    function totalSupply() public view returns (uint256) {
        return erc20Store.totalSupply();
    }

    /// @notice  Core logic of the ERC20 `balanceOf` function.
    function balanceOf(address _owner) public view returns (uint256 balance) {
        return erc20Store.balances(_owner);
    }

    /// @notice  Core logic of the ERC20 `allowance` function.
    function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
        return erc20Store.allowed(_owner, _spender);
    }

    // EVENTS
    /// @dev  Emitted by successful `requestPrint` calls.
    event PrintingLocked(bytes32 _lockId, address _receiver, uint256 _value);
    /// @dev Emitted by successful `confirmPrint` calls.
    event PrintingConfirmed(bytes32 _lockId, address _receiver, uint256 _value);
}


/** @title  ERC20 compliant token balance store.
  *
  * @notice  This contract serves as the store of balances, allowances, and
  * supply for the ERC20 compliant token. No business logic exists here.
  *
  * @dev  This contract contains no business logic and instead
  * is the final destination for any change in balances, allowances, or token
  * supply. This contract is upgradeable in the sense that its custodian can
  * update the `erc20Impl` address, thus redirecting the source of logic that
  * determines how the balances will be updated.
  *
  * @author  Gemini Trust Company, LLC
  */
contract ERC20Store is ERC20ImplUpgradeable {

    // MEMBERS
    /// @dev  The total token supply.
    uint256 public totalSupply;

    /// @dev  The mapping of balances.
    mapping (address => uint256) public balances;

    /// @dev  The mapping of allowances.
    mapping (address => mapping (address => uint256)) public allowed;

    // CONSTRUCTOR
    function ERC20Store(address _custodian) ERC20ImplUpgradeable(_custodian) public {
        totalSupply = 0;
    }


    // PUBLIC FUNCTIONS
    // (ERC20 Ledger)

    /** @notice  The function to set the total supply of tokens.
      *
      * @dev  Intended for use by token implementation functions
      * that update the total supply. The only authorized caller
      * is the active implementation.
      *
      * @param _newTotalSupply the value to set as the new total supply
      */
    function setTotalSupply(
        uint256 _newTotalSupply
    )
        public
        onlyImpl
    {
        totalSupply = _newTotalSupply;
    }

    /** @notice  Sets how much `_owner` allows `_spender` to transfer on behalf
      * of `_owner`.
      *
      * @dev  Intended for use by token implementation functions
      * that update spending allowances. The only authorized caller
      * is the active implementation.
      *
      * @param  _owner  The account that will allow an on-behalf-of spend.
      * @param  _spender  The account that will spend on behalf of the owner.
      * @param  _value  The limit of what can be spent.
      */
    function setAllowance(
        address _owner,
        address _spender,
        uint256 _value
    )
        public
        onlyImpl
    {
        allowed[_owner][_spender] = _value;
    }

    /** @notice  Sets the balance of `_owner` to `_newBalance`.
      *
      * @dev  Intended for use by token implementation functions
      * that update balances. The only authorized caller
      * is the active implementation.
      *
      * @param  _owner  The account that will hold a new balance.
      * @param  _newBalance  The balance to set.
      */
    function setBalance(
        address _owner,
        uint256 _newBalance
    )
        public
        onlyImpl
    {
        balances[_owner] = _newBalance;
    }

    /** @notice Adds `_balanceIncrease` to `_owner`'s balance.
      *
      * @dev  Intended for use by token implementation functions
      * that update balances. The only authorized caller
      * is the active implementation.
      * WARNING: the caller is responsible for preventing overflow.
      *
      * @param  _owner  The account that will hold a new balance.
      * @param  _balanceIncrease  The balance to add.
      */
    function addBalance(
        address _owner,
        uint256 _balanceIncrease
    )
        public
        onlyImpl
    {
        balances[_owner] = balances[_owner] + _balanceIncrease;
    }
}

    Contract ABI  
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_proposedCustodian","type":"address"}],"name":"requestCustodianChange","outputs":[{"name":"lockId","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"emitTransfer","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"custodian","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_lockId","type":"bytes32"}],"name":"confirmCustodianChange","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"erc20Impl","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_proposedImpl","type":"address"}],"name":"requestImplChange","outputs":[{"name":"lockId","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"emitApproval","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_lockId","type":"bytes32"}],"name":"confirmImplChange","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"implChangeReqs","outputs":[{"name":"proposedNew","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"lockRequestCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"custodianChangeReqs","outputs":[{"name":"proposedNew","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_decimals","type":"uint8"},{"name":"_custodian","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_lockId","type":"bytes32"},{"indexed":false,"name":"_msgSender","type":"address"},{"indexed":false,"name":"_proposedImpl","type":"address"}],"name":"ImplChangeRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_lockId","type":"bytes32"},{"indexed":false,"name":"_newImpl","type":"address"}],"name":"ImplChangeConfirmed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_lockId","type":"bytes32"},{"indexed":false,"name":"_msgSender","type":"address"},{"indexed":false,"name":"_proposedCustodian","type":"address"}],"name":"CustodianChangeRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_lockId","type":"bytes32"},{"indexed":false,"name":"_newCustodian","type":"address"}],"name":"CustodianChangeConfirmed","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"},{"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"}]

  Contract Creation Code Switch To Opcodes View
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

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

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [3] : 000000000000000000000000dffc66191baf5047866033d2fe400907af4038a8
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000d
Arg [5] : 47656d696e6920646f6c6c617200000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [7] : 4755534400000000000000000000000000000000000000000000000000000000


   Swarm Source:
bzzr://e9510794af44fba3b1d3c8d2d27f071e428847cc4b56c82a806ad15368cfc00b

 

View All
Block Age transaction Difficulty GasUsed Reward
View All
Block Age UncleNumber Difficulty GasUsed Reward
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.