Latest 25 txns From a total of 5004 Transactions

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0x49acaee4696e139804590948fa1d8ca616c5bd69159949c28a41b240f87234de1 day 8 mins ago0xffb9a31520965ee021d634af67ea2ac6a1606bf3  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.004499996
0x8eaf22a2e29c93323ae646d416375f659d56d74908179ca48cfa9e16cd935f761 day 19 mins ago0xffb9a31520965ee021d634af67ea2ac6a1606bf3  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00414059
0x27e80a073f892e56e83ea9fd71922f91b92dc7da7b57948b08dec6e8fa88e8361 day 20 mins ago0xffb9a31520965ee021d634af67ea2ac6a1606bf3  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00414059
0x2878f5296b14a818e0f1a125b889da5b73e47d77ea4c307a24659d8272a231dc1 day 21 mins ago0xffb9a31520965ee021d634af67ea2ac6a1606bf3  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00213159
0x96aae8de55fb56fd435348bc18b267afa1b5798f5247126909acc311979e7dfa1 day 3 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0x07046c963fb3cb49f0b2aedc18ae7541c2d171f8834fca3c8a30f137f31584c71 day 3 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0x10ef6032a1402aa51cf679096b080b759aa444178717c83eaace7aa64f8e40561 day 4 hrs ago0xd77e6c2713cf00cd95c17721e884962859c1689f  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.000280116
0x988f148a51f79b04f400609cd81be111bc9003332065b87eb284f1b42746e8151 day 6 hrs ago0xe59474b5cf2c2e098517d90d229aec0e838628b3  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.002457
0x1ee05c64ca0da90d9f7cac9e88de3e8bc0a6018eac0dbc209daf0b459a85e0f11 day 6 hrs ago0x326874f22b688970e1e85568791ac4700917cc8a  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00019656
0x82de1791edd830605a0f64148a7db664a9cfcaaf38f89614f54c27f336256b2e1 day 6 hrs ago0x326874f22b688970e1e85568791ac4700917cc8a  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.000316048
0xb6c69f85b8fb23389654d212f61e7ad3f73727d3050b572460d4b7fa79c1d2021 day 14 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.003207
0x072407815083c9e4ec9356c6715bea6426ae2622aa8cd330312dbf6c4d5313411 day 19 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0x67d7422441f876b65966bdb8d20082b68b5f515ba7715188d42a75d12e6d252b1 day 23 hrs ago0x1beed9e1abfddbeca99e8dcca28ee8de042caf47  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0024538
0x19cb3a92854abd4fa6edf45bce2d3123a1a4c5e7431404cf334596642c0f86371 day 23 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0x5d89e82cba818a30909297c93e58019506be24d7fe6af885007bbc66b841370a2 days 33 mins ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0xb30539d1c18064d090523955033207e28a60c4b64c35f97a21b64a22e749e2a42 days 1 hr ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0xceddc2d045fd2cbe3d0c660c510c4207acec162dee32fbee01995293d6ae10722 days 1 hr ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0062442
0x31ae6d2b1668c7d53d4e9b59a023aac69979221644daf97e4f725b4bbb6555012 days 1 hr ago0x027c19779e23f7239750d7653d271ab40fa2af08  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0024538
0x44ec1f4513346110ae66ca3ea2aa620acdf23249be6139ae2b8758bf536ad8882 days 1 hr ago0x327de23f8dd66a9ab2b517c41bd3f123796d03eb  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00192228
0xa820f636fe55948271a2e6c8e7ab81ed2f96fef0f759269b8a6839a4e0f527b82 days 1 hr ago0x2984581ece53a4390d1f568673cf693139c97049  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00128152
0xd08ad1c837ae7b7481afe6f03df6c58d4af38d84e07cad9d5012dca2d5d045a22 days 2 hrs ago0x2984581ece53a4390d1f568673cf693139c97049  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0024964
0x2ce34afbda28f7d30ae439072471871ff011296a7c6642a8fbcab7dd6b68c0622 days 3 hrs agoMercatox  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00189
0xbe15e555fcaf013991296e27a575c34736ce96589ec97055408188cc186053f83 days 10 mins ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.0032038
0xd743069ece3c66dcc1dfe04cc59fde57373ee8516f5f137b61389e6f2434f2f54 days 1 hr agoMercatox  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.00189
0xcea91007805559f3cf460927805b255a958e84f814ef63cb16df40f7528fe4755 days 2 hrs ago0x97bc64433823f05b85e0a12bbad2af62cf5867be  IN   0x1500205f50bf3fd976466d0662905c9ff254fc9c0 Ether0.003207
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0xea816d6b56516eca2414f67ba428c489a775a83bd70d8a48d5c1fa49d975e9d1619772033 days 12 hrs ago0x1500205f50bf3fd976466d0662905c9ff254fc9c0x6642bf72723839785418a5d2a2ed5b5dfe0cb3540.00001 Ether
0x2a4ba6ab4795cd84ee9d889652e70acb35ad8a6feb1dfdca54e668442b56aec14582110310 days 6 hrs ago0x1500205f50bf3fd976466d0662905c9ff254fc9c0x6642bf72723839785418a5d2a2ed5b5dfe0cb3540.14057 Ether
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Contract Name: BitBoostTokens
Compiler Text: v0.4.11+commit.68ef5810
Optimization Enabled: Yes
Runs (Optimiser):  10000



  Contract Source Code   Find Similiar Contracts

pragma solidity 0.4.11;

contract RegistryICAPInterface {
    function parse(bytes32 _icap) constant returns(address, bytes32, bool);
    function institutions(bytes32 _institution) constant returns(address);
}

contract EToken2Interface {
    function registryICAP() constant returns(RegistryICAPInterface);
    function baseUnit(bytes32 _symbol) constant returns(uint8);
    function description(bytes32 _symbol) constant returns(string);
    function owner(bytes32 _symbol) constant returns(address);
    function isOwner(address _owner, bytes32 _symbol) constant returns(bool);
    function totalSupply(bytes32 _symbol) constant returns(uint);
    function balanceOf(address _holder, bytes32 _symbol) constant returns(uint);
    function isLocked(bytes32 _symbol) constant returns(bool);
    function issueAsset(bytes32 _symbol, uint _value, string _name, string _description, uint8 _baseUnit, bool _isReissuable) returns(bool);
    function reissueAsset(bytes32 _symbol, uint _value) returns(bool);
    function revokeAsset(bytes32 _symbol, uint _value) returns(bool);
    function setProxy(address _address, bytes32 _symbol) returns(bool);
    function lockAsset(bytes32 _symbol) returns(bool);
    function proxyTransferFromToICAPWithReference(address _from, bytes32 _icap, uint _value, string _reference, address _sender) returns(bool);
    function proxyApprove(address _spender, uint _value, bytes32 _symbol, address _sender) returns(bool);
    function allowance(address _from, address _spender, bytes32 _symbol) constant returns(uint);
    function proxyTransferFromWithReference(address _from, address _to, uint _value, bytes32 _symbol, string _reference, address _sender) returns(bool);
}

contract AssetInterface {
    function _performTransferWithReference(address _to, uint _value, string _reference, address _sender) returns(bool);
    function _performTransferToICAPWithReference(bytes32 _icap, uint _value, string _reference, address _sender) returns(bool);
    function _performApprove(address _spender, uint _value, address _sender) returns(bool);
    function _performTransferFromWithReference(address _from, address _to, uint _value, string _reference, address _sender) returns(bool);
    function _performTransferFromToICAPWithReference(address _from, bytes32 _icap, uint _value, string _reference, address _sender) returns(bool);
    function _performGeneric(bytes _data, address _sender) payable returns(bytes32) {
        throw;
    }
}

contract ERC20Interface {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed from, address indexed spender, uint256 value);

    function totalSupply() constant returns(uint256 supply);
    function balanceOf(address _owner) constant returns(uint256 balance);
    function transfer(address _to, uint256 _value) returns(bool success);
    function transferFrom(address _from, address _to, uint256 _value) returns(bool success);
    function approve(address _spender, uint256 _value) returns(bool success);
    function allowance(address _owner, address _spender) constant returns(uint256 remaining);

    // function symbol() constant returns(string);
    function decimals() constant returns(uint8);
    // function name() constant returns(string);
}

contract AssetProxyInterface {
    function _forwardApprove(address _spender, uint _value, address _sender) returns(bool);
    function _forwardTransferFromWithReference(address _from, address _to, uint _value, string _reference, address _sender) returns(bool);
    function _forwardTransferFromToICAPWithReference(address _from, bytes32 _icap, uint _value, string _reference, address _sender) returns(bool);
    function balanceOf(address _owner) constant returns(uint);
}

contract Bytes32 {
    function _bytes32(string _input) internal constant returns(bytes32 result) {
        assembly {
            result := mload(add(_input, 32))
        }
    }
}

/**
 * @title EToken2 Asset Proxy.
 *
 * Proxy implements ERC20 interface and acts as a gateway to a single EToken2 asset.
 * Proxy adds etoken2Symbol and caller(sender) when forwarding requests to EToken2.
 * Every request that is made by caller first sent to the specific asset implementation
 * contract, which then calls back to be forwarded onto EToken2.
 *
 * Calls flow: Caller ->
 *             Proxy.func(...) ->
 *             Asset._performFunc(..., Caller.address) ->
 *             Proxy._forwardFunc(..., Caller.address) ->
 *             Platform.proxyFunc(..., symbol, Caller.address)
 *
 * Generic call flow: Caller ->
 *             Proxy.unknownFunc(...) ->
 *             Asset._performGeneric(..., Caller.address) ->
 *             Asset.unknownFunc(...)
 *
 * Asset implementation contract is mutable, but each user have an option to stick with
 * old implementation, through explicit decision made in timely manner, if he doesn't agree
 * with new rules.
 * Each user have a possibility to upgrade to latest asset contract implementation, without the
 * possibility to rollback.
 *
 * Note: all the non constant functions return false instead of throwing in case if state change
 * didn't happen yet.
 */
contract BitBoostTokens is ERC20Interface, AssetProxyInterface, Bytes32 {
    // Assigned EToken2, immutable.
    EToken2Interface public etoken2;

    // Assigned symbol, immutable.
    bytes32 public etoken2Symbol;

    // Assigned name, immutable. For UI.
    string public name;
    string public symbol;

    /**
     * Sets EToken2 address, assigns symbol and name.
     *
     * Can be set only once.
     *
     * @param _etoken2 EToken2 contract address.
     * @param _symbol assigned symbol.
     * @param _name assigned name.
     *
     * @return success.
     */
    function init(EToken2Interface _etoken2, string _symbol, string _name) returns(bool) {
        if (address(etoken2) != 0x0) {
            return false;
        }
        etoken2 = _etoken2;
        etoken2Symbol = _bytes32(_symbol);
        name = _name;
        symbol = _symbol;
        return true;
    }

    /**
     * Only EToken2 is allowed to call.
     */
    modifier onlyEToken2() {
        if (msg.sender == address(etoken2)) {
            _;
        }
    }

    /**
     * Only current asset owner is allowed to call.
     */
    modifier onlyAssetOwner() {
        if (etoken2.isOwner(msg.sender, etoken2Symbol)) {
            _;
        }
    }

    /**
     * Returns asset implementation contract for current caller.
     *
     * @return asset implementation contract.
     */
    function _getAsset() internal returns(AssetInterface) {
        return AssetInterface(getVersionFor(msg.sender));
    }

    function recoverTokens(uint _value) onlyAssetOwner() returns(bool) {
        return this.transferWithReference(msg.sender, _value, 'Tokens recovery');
    }

    /**
     * Returns asset total supply.
     *
     * @return asset total supply.
     */
    function totalSupply() constant returns(uint) {
        return etoken2.totalSupply(etoken2Symbol);
    }

    /**
     * Returns asset balance for a particular holder.
     *
     * @param _owner holder address.
     *
     * @return holder balance.
     */
    function balanceOf(address _owner) constant returns(uint) {
        return etoken2.balanceOf(_owner, etoken2Symbol);
    }

    /**
     * Returns asset allowance from one holder to another.
     *
     * @param _from holder that allowed spending.
     * @param _spender holder that is allowed to spend.
     *
     * @return holder to spender allowance.
     */
    function allowance(address _from, address _spender) constant returns(uint) {
        return etoken2.allowance(_from, _spender, etoken2Symbol);
    }

    /**
     * Returns asset decimals.
     *
     * @return asset decimals.
     */
    function decimals() constant returns(uint8) {
        return etoken2.baseUnit(etoken2Symbol);
    }

    /**
     * Transfers asset balance from the caller to specified receiver.
     *
     * @param _to holder address to give to.
     * @param _value amount to transfer.
     *
     * @return success.
     */
    function transfer(address _to, uint _value) returns(bool) {
        return transferWithReference(_to, _value, '');
    }

    /**
     * Transfers asset balance from the caller to specified receiver adding specified comment.
     * Resolves asset implementation contract for the caller and forwards there arguments along with
     * the caller address.
     *
     * @param _to holder address to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     *
     * @return success.
     */
    function transferWithReference(address _to, uint _value, string _reference) returns(bool) {
        return _getAsset()._performTransferWithReference(_to, _value, _reference, msg.sender);
    }

    /**
     * Transfers asset balance from the caller to specified ICAP.
     *
     * @param _icap recipient ICAP to give to.
     * @param _value amount to transfer.
     *
     * @return success.
     */
    function transferToICAP(bytes32 _icap, uint _value) returns(bool) {
        return transferToICAPWithReference(_icap, _value, '');
    }

    /**
     * Transfers asset balance from the caller to specified ICAP adding specified comment.
     * Resolves asset implementation contract for the caller and forwards there arguments along with
     * the caller address.
     *
     * @param _icap recipient ICAP to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     *
     * @return success.
     */
    function transferToICAPWithReference(bytes32 _icap, uint _value, string _reference) returns(bool) {
        return _getAsset()._performTransferToICAPWithReference(_icap, _value, _reference, msg.sender);
    }

    /**
     * Prforms allowance transfer of asset balance between holders.
     *
     * @param _from holder address to take from.
     * @param _to holder address to give to.
     * @param _value amount to transfer.
     *
     * @return success.
     */
    function transferFrom(address _from, address _to, uint _value) returns(bool) {
        return transferFromWithReference(_from, _to, _value, '');
    }

    /**
     * Prforms allowance transfer of asset balance between holders adding specified comment.
     * Resolves asset implementation contract for the caller and forwards there arguments along with
     * the caller address.
     *
     * @param _from holder address to take from.
     * @param _to holder address to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     *
     * @return success.
     */
    function transferFromWithReference(address _from, address _to, uint _value, string _reference) returns(bool) {
        return _getAsset()._performTransferFromWithReference(_from, _to, _value, _reference, msg.sender);
    }

    /**
     * Performs transfer call on the EToken2 by the name of specified sender.
     *
     * Can only be called by asset implementation contract assigned to sender.
     *
     * @param _from holder address to take from.
     * @param _to holder address to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     * @param _sender initial caller.
     *
     * @return success.
     */
    function _forwardTransferFromWithReference(address _from, address _to, uint _value, string _reference, address _sender) onlyImplementationFor(_sender) returns(bool) {
        return etoken2.proxyTransferFromWithReference(_from, _to, _value, etoken2Symbol, _reference, _sender);
    }

    /**
     * Prforms allowance transfer of asset balance between holders.
     *
     * @param _from holder address to take from.
     * @param _icap recipient ICAP address to give to.
     * @param _value amount to transfer.
     *
     * @return success.
     */
    function transferFromToICAP(address _from, bytes32 _icap, uint _value) returns(bool) {
        return transferFromToICAPWithReference(_from, _icap, _value, '');
    }

    /**
     * Prforms allowance transfer of asset balance between holders adding specified comment.
     * Resolves asset implementation contract for the caller and forwards there arguments along with
     * the caller address.
     *
     * @param _from holder address to take from.
     * @param _icap recipient ICAP address to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     *
     * @return success.
     */
    function transferFromToICAPWithReference(address _from, bytes32 _icap, uint _value, string _reference) returns(bool) {
        return _getAsset()._performTransferFromToICAPWithReference(_from, _icap, _value, _reference, msg.sender);
    }

    /**
     * Performs allowance transfer to ICAP call on the EToken2 by the name of specified sender.
     *
     * Can only be called by asset implementation contract assigned to sender.
     *
     * @param _from holder address to take from.
     * @param _icap recipient ICAP address to give to.
     * @param _value amount to transfer.
     * @param _reference transfer comment to be included in a EToken2's Transfer event.
     * @param _sender initial caller.
     *
     * @return success.
     */
    function _forwardTransferFromToICAPWithReference(address _from, bytes32 _icap, uint _value, string _reference, address _sender) onlyImplementationFor(_sender) returns(bool) {
        return etoken2.proxyTransferFromToICAPWithReference(_from, _icap, _value, _reference, _sender);
    }

    /**
     * Sets asset spending allowance for a specified spender.
     * Resolves asset implementation contract for the caller and forwards there arguments along with
     * the caller address.
     *
     * @param _spender holder address to set allowance to.
     * @param _value amount to allow.
     *
     * @return success.
     */
    function approve(address _spender, uint _value) returns(bool) {
        return _getAsset()._performApprove(_spender, _value, msg.sender);
    }

    /**
     * Performs allowance setting call on the EToken2 by the name of specified sender.
     *
     * Can only be called by asset implementation contract assigned to sender.
     *
     * @param _spender holder address to set allowance to.
     * @param _value amount to allow.
     * @param _sender initial caller.
     *
     * @return success.
     */
    function _forwardApprove(address _spender, uint _value, address _sender) onlyImplementationFor(_sender) returns(bool) {
        return etoken2.proxyApprove(_spender, _value, etoken2Symbol, _sender);
    }

    /**
     * Emits ERC20 Transfer event on this contract.
     *
     * Can only be, and, called by assigned EToken2 when asset transfer happens.
     */
    function emitTransfer(address _from, address _to, uint _value) onlyEToken2() {
        Transfer(_from, _to, _value);
    }

    /**
     * Emits ERC20 Approval event on this contract.
     *
     * Can only be, and, called by assigned EToken2 when asset allowance set happens.
     */
    function emitApprove(address _from, address _spender, uint _value) onlyEToken2() {
        Approval(_from, _spender, _value);
    }

    /**
     * Resolves asset implementation contract for the caller and forwards there transaction data,
     * along with the value. This allows for proxy interface growth.
     */
    function () payable {
        bytes32 result = _getAsset()._performGeneric.value(msg.value)(msg.data, msg.sender);
        assembly {
            mstore(0, result)
            return(0, 32)
        }
    }

    /**
     * Indicates an upgrade freeze-time start, and the next asset implementation contract.
     */
    event UpgradeProposal(address newVersion);

    // Current asset implementation contract address.
    address latestVersion;

    // Proposed next asset implementation contract address.
    address pendingVersion;

    // Upgrade freeze-time start.
    uint pendingVersionTimestamp;

    // Timespan for users to review the new implementation and make decision.
    uint constant UPGRADE_FREEZE_TIME = 3 days;

    // Asset implementation contract address that user decided to stick with.
    // 0x0 means that user uses latest version.
    mapping(address => address) userOptOutVersion;

    /**
     * Only asset implementation contract assigned to sender is allowed to call.
     */
    modifier onlyImplementationFor(address _sender) {
        if (getVersionFor(_sender) == msg.sender) {
            _;
        }
    }

    /**
     * Returns asset implementation contract address assigned to sender.
     *
     * @param _sender sender address.
     *
     * @return asset implementation contract address.
     */
    function getVersionFor(address _sender) constant returns(address) {
        return userOptOutVersion[_sender] == 0 ? latestVersion : userOptOutVersion[_sender];
    }

    /**
     * Returns current asset implementation contract address.
     *
     * @return asset implementation contract address.
     */
    function getLatestVersion() constant returns(address) {
        return latestVersion;
    }

    /**
     * Returns proposed next asset implementation contract address.
     *
     * @return asset implementation contract address.
     */
    function getPendingVersion() constant returns(address) {
        return pendingVersion;
    }

    /**
     * Returns upgrade freeze-time start.
     *
     * @return freeze-time start.
     */
    function getPendingVersionTimestamp() constant returns(uint) {
        return pendingVersionTimestamp;
    }

    /**
     * Propose next asset implementation contract address.
     *
     * Can only be called by current asset owner.
     *
     * Note: freeze-time should not be applied for the initial setup.
     *
     * @param _newVersion asset implementation contract address.
     *
     * @return success.
     */
    function proposeUpgrade(address _newVersion) onlyAssetOwner() returns(bool) {
        // Should not already be in the upgrading process.
        if (pendingVersion != 0x0) {
            return false;
        }
        // New version address should be other than 0x0.
        if (_newVersion == 0x0) {
            return false;
        }
        // Don't apply freeze-time for the initial setup.
        if (latestVersion == 0x0) {
            latestVersion = _newVersion;
            return true;
        }
        pendingVersion = _newVersion;
        pendingVersionTimestamp = now;
        UpgradeProposal(_newVersion);
        return true;
    }

    /**
     * Cancel the pending upgrade process.
     *
     * Can only be called by current asset owner.
     *
     * @return success.
     */
    function purgeUpgrade() onlyAssetOwner() returns(bool) {
        if (pendingVersion == 0x0) {
            return false;
        }
        delete pendingVersion;
        delete pendingVersionTimestamp;
        return true;
    }

    /**
     * Finalize an upgrade process setting new asset implementation contract address.
     *
     * Can only be called after an upgrade freeze-time.
     *
     * @return success.
     */
    function commitUpgrade() returns(bool) {
        if (pendingVersion == 0x0) {
            return false;
        }
        if (pendingVersionTimestamp + UPGRADE_FREEZE_TIME > now) {
            return false;
        }
        latestVersion = pendingVersion;
        delete pendingVersion;
        delete pendingVersionTimestamp;
        return true;
    }

    /**
     * Disagree with proposed upgrade, and stick with current asset implementation
     * until further explicit agreement to upgrade.
     *
     * @return success.
     */
    function optOut() returns(bool) {
        if (userOptOutVersion[msg.sender] != 0x0) {
            return false;
        }
        userOptOutVersion[msg.sender] = latestVersion;
        return true;
    }

    /**
     * Implicitly agree to upgrade to current and future asset implementation upgrades,
     * until further explicit disagreement.
     *
     * @return success.
     */
    function optIn() returns(bool) {
        delete userOptOutVersion[msg.sender];
        return true;
    }

    // Backwards compatibility.
    function multiAsset() constant returns(EToken2Interface) {
        return etoken2;
    }
}

    Contract ABI  
[{"constant":true,"inputs":[],"name":"multiAsset","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"commitUpgrade","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"getLatestVersion","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"},{"name":"_sender","type":"address"}],"name":"_forwardTransferFromWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"emitApprove","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"emitTransfer","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"recoverTokens","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"etoken2","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"getPendingVersionTimestamp","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"purgeUpgrade","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"optIn","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"}],"name":"transferFromWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_icap","type":"bytes32"},{"name":"_value","type":"uint256"}],"name":"transferToICAP","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_icap","type":"bytes32"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"}],"name":"transferToICAPWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_sender","type":"address"}],"name":"_forwardApprove","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_icap","type":"bytes32"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"},{"name":"_sender","type":"address"}],"name":"_forwardTransferFromToICAPWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_icap","type":"bytes32"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"}],"name":"transferFromToICAPWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_icap","type":"bytes32"},{"name":"_value","type":"uint256"}],"name":"transferFromToICAP","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"etoken2Symbol","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"getPendingVersion","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_reference","type":"string"}],"name":"transferWithReference","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_etoken2","type":"address"},{"name":"_symbol","type":"string"},{"name":"_name","type":"string"}],"name":"init","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newVersion","type":"address"}],"name":"proposeUpgrade","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"optOut","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_from","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_sender","type":"address"}],"name":"getVersionFor","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newVersion","type":"address"}],"name":"UpgradeProposal","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":"from","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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   Swarm Source:
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