Contract 0x3eb064766109d150e4362222df80638bce00e037

 
Synthetix: Proxy sEUR Token contract has migrated to a new address.
Txn Hash Method
Block
From
To
Value
0x61fbe976edc8642322ca5a0bfc87072a156df6096769f02b58403dca35412c23Transfer120383502021-03-14 18:34:16100 days 1 hr ago0xff2ad1bc3b0f98b8910655f49898334d572c8a4e IN  Synthetix: Old Proxy sEUR Token0 Ether0.012669195165
0x3a2277fbcf4cf6650e5b6578049b024da5618f93740fb7a082c850724a1f1601Transfer120374932021-03-14 15:24:34100 days 5 hrs ago0xff2ad1bc3b0f98b8910655f49898334d572c8a4e IN  Synthetix: Old Proxy sEUR Token0 Ether0.01151745150
0x50a87091a0b7ac5b73b90f8a2d046ae8e8e8a5b69cc0282943bc8372f17cedb2Transfer120374872021-03-14 15:23:51100 days 5 hrs ago0xff2ad1bc3b0f98b8910655f49898334d572c8a4e IN  Synthetix: Old Proxy sEUR Token0 Ether0.01151745150
0x19ab4cff1e11313b43d30e1b1597435fc986b104ececa667a88e48c58bb6a41bTransfer117186352021-01-24 13:40:01149 days 6 hrs ago0x896022620ca215a0e5c8510095f194f46c3470db IN  Synthetix: Old Proxy sEUR Token0 Ether0.00473057261.6
0x5b706d48fbb444d058c4b2e86e5a212b86d028f9a123302eef74b47e0cca844bTransfer117186332021-01-24 13:39:36149 days 6 hrs ago0x896022620ca215a0e5c8510095f194f46c3470db IN  Synthetix: Old Proxy sEUR Token0 Ether0.004983995564.9
0x571310972faf47ecaa2247037b2e209b76c1ac91f3b403d2b36466a79061c744Transfer117036792021-01-22 6:23:22151 days 14 hrs ago0x3a13696ebc60603873daa01d417b502697a57414 IN  Synthetix: Old Proxy sEUR Token0 Ether0.00476054662
0xac08ccff3752bf62df17e9d2f40dcd628a1edb893ab716d57065d5d02ee3807cTransfer87603602019-10-17 19:24:00614 days 1 hr ago0x58c7146cdb30e90b89520af038355e360d87df03 IN  Synthetix: Old Proxy sEUR Token0 Ether0.00050844518.1
0xc843234d134db7dd4fbbab16d7f56d781729d0353dea845e384be1cf3f6585f5Transfer87413922019-10-14 19:43:39617 days 41 mins ago0x58c7146cdb30e90b89520af038355e360d87df03 IN  Synthetix: Old Proxy sEUR Token0 Ether0.0004976888
0x88a740302ae9994cfbf2ae64dc482c4e0a8f9b80cac0df276fa388f611387998Transfer87413882019-10-14 19:43:17617 days 41 mins ago0x58c7146cdb30e90b89520af038355e360d87df03 IN  Synthetix: Old Proxy sEUR Token0 Ether0.0000627711
0x8fd6cca71fa8229e196556b20110bac2559aaf0ea3a373aac4c656c0c1005b75Transfer86714052019-10-03 20:31:44627 days 23 hrs ago0x58c7146cdb30e90b89520af038355e360d87df03 IN  Synthetix: Old Proxy sEUR Token0 Ether0.0008942715
0xb0b0e490ce87085ea2ec9855a3228d445f862e6ae65d80387b359cd549739c65Transfer86713902019-10-03 20:26:57627 days 23 hrs ago0x58c7146cdb30e90b89520af038355e360d87df03 IN  Synthetix: Old Proxy sEUR Token0 Ether0.00035962812
0x7aa7ea926b347e99a51cdb1bfcce24d92971a2be9901473d49f12ca20de50964Accept Ownership68418332018-12-07 9:21:44928 days 11 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Old Proxy sEUR Token0 Ether0.0001338057
0x89517fd06f65e538bf24575473057c289ac66d8c21fbc08154157b6170f4d9a0Nominate New Own...68398122018-12-07 1:15:22928 days 19 hrs agoSynthetix: Deployer 4 IN  Synthetix: Old Proxy sEUR Token0 Ether0.00044562455810.001
0x22ea9da4c883cb6cae26831a46b8366eb01128b1c346ad4925f431f0411266f7Set Target68355412018-12-06 8:18:25929 days 12 hrs agoSynthetix: Deployer 4 IN  Synthetix: Old Proxy sEUR Token0 Ether0.0004014189
0x1484d6c462f1ecba5e8a9da7b812cdafe826bdf05f48ca45bac62fa5c0c26ba80x6080604068349772018-12-06 6:08:17929 days 14 hrs agoSynthetix: Deployer 4 IN  Contract Creation0 Ether0.00921589435215.001
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OVERVIEW

The legacy proxy token contract for Synthetix: Proxy sEUR Token.

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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xb440DD674e1243644791a4AdfE3A2AbB0A92d309

Contract Name:
Proxy

Compiler Version
v0.4.25+commit.59dbf8f1

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-12-06
*/

/* ===============================================
* Flattened with Solidifier by Coinage
* 
* https://solidifier.coina.ge
* ===============================================
*/


/*
-----------------------------------------------------------------
FILE INFORMATION
-----------------------------------------------------------------

file:       Owned.sol
version:    1.1
author:     Anton Jurisevic
            Dominic Romanowski

date:       2018-2-26

-----------------------------------------------------------------
MODULE DESCRIPTION
-----------------------------------------------------------------

An Owned contract, to be inherited by other contracts.
Requires its owner to be explicitly set in the constructor.
Provides an onlyOwner access modifier.

To change owner, the current owner must nominate the next owner,
who then has to accept the nomination. The nomination can be
cancelled before it is accepted by the new owner by having the
previous owner change the nomination (setting it to 0).

-----------------------------------------------------------------
*/

pragma solidity 0.4.25;

/**
 * @title A contract with an owner.
 * @notice Contract ownership can be transferred by first nominating the new owner,
 * who must then accept the ownership, which prevents accidental incorrect ownership transfers.
 */
contract Owned {
    address public owner;
    address public nominatedOwner;

    /**
     * @dev Owned Constructor
     */
    constructor(address _owner)
        public
    {
        require(_owner != address(0), "Owner address cannot be 0");
        owner = _owner;
        emit OwnerChanged(address(0), _owner);
    }

    /**
     * @notice Nominate a new owner of this contract.
     * @dev Only the current owner may nominate a new owner.
     */
    function nominateNewOwner(address _owner)
        external
        onlyOwner
    {
        nominatedOwner = _owner;
        emit OwnerNominated(_owner);
    }

    /**
     * @notice Accept the nomination to be owner.
     */
    function acceptOwnership()
        external
    {
        require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership");
        emit OwnerChanged(owner, nominatedOwner);
        owner = nominatedOwner;
        nominatedOwner = address(0);
    }

    modifier onlyOwner
    {
        require(msg.sender == owner, "Only the contract owner may perform this action");
        _;
    }

    event OwnerNominated(address newOwner);
    event OwnerChanged(address oldOwner, address newOwner);
}


/*
-----------------------------------------------------------------
FILE INFORMATION
-----------------------------------------------------------------

file:       Proxyable.sol
version:    1.1
author:     Anton Jurisevic

date:       2018-05-15

checked:    Mike Spain
approved:   Samuel Brooks

-----------------------------------------------------------------
MODULE DESCRIPTION
-----------------------------------------------------------------

A proxyable contract that works hand in hand with the Proxy contract
to allow for anyone to interact with the underlying contract both
directly and through the proxy.

-----------------------------------------------------------------
*/


// This contract should be treated like an abstract contract
contract Proxyable is Owned {
    /* The proxy this contract exists behind. */
    Proxy public proxy;

    /* The caller of the proxy, passed through to this contract.
     * Note that every function using this member must apply the onlyProxy or
     * optionalProxy modifiers, otherwise their invocations can use stale values. */ 
    address messageSender; 

    constructor(address _proxy, address _owner)
        Owned(_owner)
        public
    {
        proxy = Proxy(_proxy);
        emit ProxyUpdated(_proxy);
    }

    function setProxy(address _proxy)
        external
        onlyOwner
    {
        proxy = Proxy(_proxy);
        emit ProxyUpdated(_proxy);
    }

    function setMessageSender(address sender)
        external
        onlyProxy
    {
        messageSender = sender;
    }

    modifier onlyProxy {
        require(Proxy(msg.sender) == proxy, "Only the proxy can call this function");
        _;
    }

    modifier optionalProxy
    {
        if (Proxy(msg.sender) != proxy) {
            messageSender = msg.sender;
        }
        _;
    }

    modifier optionalProxy_onlyOwner
    {
        if (Proxy(msg.sender) != proxy) {
            messageSender = msg.sender;
        }
        require(messageSender == owner, "This action can only be performed by the owner");
        _;
    }

    event ProxyUpdated(address proxyAddress);
}


/*
-----------------------------------------------------------------
FILE INFORMATION
-----------------------------------------------------------------

file:       Proxy.sol
version:    1.3
author:     Anton Jurisevic

date:       2018-05-29

-----------------------------------------------------------------
MODULE DESCRIPTION
-----------------------------------------------------------------

A proxy contract that, if it does not recognise the function
being called on it, passes all value and call data to an
underlying target contract.

This proxy has the capacity to toggle between DELEGATECALL
and CALL style proxy functionality.

The former executes in the proxy's context, and so will preserve 
msg.sender and store data at the proxy address. The latter will not.
Therefore, any contract the proxy wraps in the CALL style must
implement the Proxyable interface, in order that it can pass msg.sender
into the underlying contract as the state parameter, messageSender.

-----------------------------------------------------------------
*/


contract Proxy is Owned {

    Proxyable public target;
    bool public useDELEGATECALL;

    constructor(address _owner)
        Owned(_owner)
        public
    {}

    function setTarget(Proxyable _target)
        external
        onlyOwner
    {
        target = _target;
        emit TargetUpdated(_target);
    }

    function setUseDELEGATECALL(bool value) 
        external
        onlyOwner
    {
        useDELEGATECALL = value;
    }

    function _emit(bytes callData, uint numTopics, bytes32 topic1, bytes32 topic2, bytes32 topic3, bytes32 topic4)
        external
        onlyTarget
    {
        uint size = callData.length;
        bytes memory _callData = callData;

        assembly {
            /* The first 32 bytes of callData contain its length (as specified by the abi). 
             * Length is assumed to be a uint256 and therefore maximum of 32 bytes
             * in length. It is also leftpadded to be a multiple of 32 bytes.
             * This means moving call_data across 32 bytes guarantees we correctly access
             * the data itself. */
            switch numTopics
            case 0 {
                log0(add(_callData, 32), size)
            } 
            case 1 {
                log1(add(_callData, 32), size, topic1)
            }
            case 2 {
                log2(add(_callData, 32), size, topic1, topic2)
            }
            case 3 {
                log3(add(_callData, 32), size, topic1, topic2, topic3)
            }
            case 4 {
                log4(add(_callData, 32), size, topic1, topic2, topic3, topic4)
            }
        }
    }

    function()
        external
        payable
    {
        if (useDELEGATECALL) {
            assembly {
                /* Copy call data into free memory region. */
                let free_ptr := mload(0x40)
                calldatacopy(free_ptr, 0, calldatasize)

                /* Forward all gas and call data to the target contract. */
                let result := delegatecall(gas, sload(target_slot), free_ptr, calldatasize, 0, 0)
                returndatacopy(free_ptr, 0, returndatasize)

                /* Revert if the call failed, otherwise return the result. */
                if iszero(result) { revert(free_ptr, returndatasize) }
                return(free_ptr, returndatasize)
            }
        } else {
            /* Here we are as above, but must send the messageSender explicitly 
             * since we are using CALL rather than DELEGATECALL. */
            target.setMessageSender(msg.sender);
            assembly {
                let free_ptr := mload(0x40)
                calldatacopy(free_ptr, 0, calldatasize)

                /* We must explicitly forward ether to the underlying contract as well. */
                let result := call(gas, sload(target_slot), callvalue, free_ptr, calldatasize, 0, 0)
                returndatacopy(free_ptr, 0, returndatasize)

                if iszero(result) { revert(free_ptr, returndatasize) }
                return(free_ptr, returndatasize)
            }
        }
    }

    modifier onlyTarget {
        require(Proxyable(msg.sender) == target, "Must be proxy target");
        _;
    }

    event TargetUpdated(Proxyable newTarget);
}

Contract Security Audit

Contract ABI

[{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"nominatedOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_target","type":"address"}],"name":"setTarget","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"callData","type":"bytes"},{"name":"numTopics","type":"uint256"},{"name":"topic1","type":"bytes32"},{"name":"topic2","type":"bytes32"},{"name":"topic3","type":"bytes32"},{"name":"topic4","type":"bytes32"}],"name":"_emit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"useDELEGATECALL","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"value","type":"bool"}],"name":"setUseDELEGATECALL","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"target","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_owner","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newTarget","type":"address"}],"name":"TargetUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"}]

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Library Used

safedecimalmath : 0x84d626b2bb4d0f064067e4bf80fce7055d8f3e7b

Swarm Source

bzzr://4bca7a8142e5efe23616315f58e7703485e53941970886ceb05f20ab767ddea0
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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