Contract 0xA9EaBdef4e0CB5090FF6988AB734038517F0B962

Contract Overview

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0x7963e51507fc2c8666d8231cd82d9745a25f3fb0ebaf5bb815c2385062c5ad48Set Target76366482020-04-02 7:27:36378 days 6 hrs ago0xb64ff7a4a33acdf48d97dab0d764afd0f6176882 IN  0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether0.0008937220
0x88bd6a5e369edbe0a91f8253db94e5d088eaa146571039f607ba9a3662c8a1da0x6080604076366422020-04-02 7:25:04378 days 6 hrs ago0xb64ff7a4a33acdf48d97dab0d764afd0f6176882 IN  Contract Creation0 Ether0.019449320
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0x7d4a153a0a7805643e9838df3844b515fccdf5c5c281bb67987fac5f85d84c4585799232020-08-30 10:02:07228 days 4 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x7d4a153a0a7805643e9838df3844b515fccdf5c5c281bb67987fac5f85d84c4585799232020-08-30 10:02:07228 days 4 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x8b8e556f79477bb9657dd963a28d20606df07a55f63b4130b0ebcdd689fd327285625082020-08-25 12:36:47233 days 1 hr ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x8b8e556f79477bb9657dd963a28d20606df07a55f63b4130b0ebcdd689fd327285625082020-08-25 12:36:47233 days 1 hr ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x8b8e556f79477bb9657dd963a28d20606df07a55f63b4130b0ebcdd689fd327285625082020-08-25 12:36:47233 days 1 hr ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x8b8e556f79477bb9657dd963a28d20606df07a55f63b4130b0ebcdd689fd327285625082020-08-25 12:36:47233 days 1 hr ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x65a3487fe20cd048f05b8cdded19a64bba05380b83d0cc6350302ef71321a88e85624142020-08-25 12:17:16233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x65a3487fe20cd048f05b8cdded19a64bba05380b83d0cc6350302ef71321a88e85624142020-08-25 12:17:16233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0xc46df6f4449c87bcced8486a8766d5185a28c1691065179a48f3137fe52c80a785623622020-08-25 12:06:56233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0xc46df6f4449c87bcced8486a8766d5185a28c1691065179a48f3137fe52c80a785623622020-08-25 12:06:56233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x10c377aa4240ffad787c635c6005aee36205e4026e6c2c0f5e62b3ce14ff3d0385623212020-08-25 11:56:47233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x10c377aa4240ffad787c635c6005aee36205e4026e6c2c0f5e62b3ce14ff3d0385623212020-08-25 11:56:47233 days 2 hrs ago 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf152 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0xcd4ef518277a0bb9b4b092729608f53e68ae6025cda2cf7b6ce1420e4aacbcb485484952020-08-23 10:04:06235 days 4 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0xcd4ef518277a0bb9b4b092729608f53e68ae6025cda2cf7b6ce1420e4aacbcb485484952020-08-23 10:04:06235 days 4 hrs ago 0x465728067a94e7a7398c8829a3f6651af71b9ee9 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x21f9d106c7d5961a2dd8091fa6ca110d882946cd2e01545a7f14870388b0ab0085484882020-08-23 10:02:03235 days 4 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0x21f9d106c7d5961a2dd8091fa6ca110d882946cd2e01545a7f14870388b0ab0085484882020-08-23 10:02:03235 days 4 hrs ago 0x465728067a94e7a7398c8829a3f6651af71b9ee9 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x021978419fa0a678c41e3cdb3ff15484348737313bc520de0e5742ae56827b8e85484882020-08-23 10:02:03235 days 4 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0x021978419fa0a678c41e3cdb3ff15484348737313bc520de0e5742ae56827b8e85484882020-08-23 10:02:03235 days 4 hrs ago 0x465728067a94e7a7398c8829a3f6651af71b9ee9 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x7b2b33e8ceff44b3764badddd48fe27dfb75b1f1116f3487384591c670f87dae85444672020-08-22 19:02:00235 days 19 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0x7b2b33e8ceff44b3764badddd48fe27dfb75b1f1116f3487384591c670f87dae85444672020-08-22 19:02:00235 days 19 hrs ago 0xdd282dbd0fe635d94f84b9b8ac9948146c785635 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x0f896d3be02968c1d918c25f67b76bfde688ce52deaca09db6eb17d42110dc1785443542020-08-22 18:36:44235 days 19 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0x0f896d3be02968c1d918c25f67b76bfde688ce52deaca09db6eb17d42110dc1785443542020-08-22 18:36:44235 days 19 hrs ago 0xdd282dbd0fe635d94f84b9b8ac9948146c785635 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x19f26d28beaa195b59813e94838b44fd5d46babd9ef0c8a24502b933e01a906585443472020-08-22 18:34:30235 days 19 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
0x19f26d28beaa195b59813e94838b44fd5d46babd9ef0c8a24502b933e01a906585443472020-08-22 18:34:30235 days 19 hrs ago 0xdd282dbd0fe635d94f84b9b8ac9948146c785635 0xa9eabdef4e0cb5090ff6988ab734038517f0b9620 Ether
0x799ea811d045d97cf360e1aa72addec2745cb6789f73583ca950af598a086edc85442552020-08-22 18:14:12235 days 20 hrs ago 0xa9eabdef4e0cb5090ff6988ab734038517f0b962 0x17b3550da6a0f5e8dd6d1cae5f8b7b47e7cdf1520 Ether
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x22C8694a6F68F29b4Df50E94f848ee435FCFba9f

Contract Name:
ProxyERC20

Compiler Version
v0.4.25+commit.59dbf8f1

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2020-04-02
*/

/*

Note:

This is a PROXY contract, it defers requests to its underlying TARGET contract. 
Always use this address in your applications and never the TARGET as it is liable to change.

*//*
   ____            __   __        __   _
  / __/__ __ ___  / /_ / /  ___  / /_ (_)__ __
 _\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ /
/___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\
     /___/

* Synthetix: ProxyERC20.sol
*
* Latest source (may be newer): https://github.com/Synthetixio/synthetix/blob/master/contracts/ProxyERC20.sol
* Docs: https://docs.synthetix.io/contracts/ProxyERC20
*
* Contract Dependencies: 
*	- IERC20
*	- Owned
*	- Proxy
* Libraries: (none)
*
* MIT License
* ===========
*
* Copyright (c) 2020 Synthetix
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/

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


pragma solidity 0.4.25;


// https://docs.synthetix.io/contracts/Owned
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);
}


// https://docs.synthetix.io/contracts/Proxy
contract Proxy is Owned {
    Proxyable public target;
    bool public useDELEGATECALL;

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

    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);
}


// https://docs.synthetix.io/contracts/Proxyable
contract Proxyable is Owned {
    // This contract should be treated like an abstract contract

    /* The proxy this contract exists behind. */
    Proxy public proxy;
    Proxy public integrationProxy;

    /* 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 public messageSender;

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

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

    function setIntegrationProxy(address _integrationProxy) external onlyOwner {
        integrationProxy = Proxy(_integrationProxy);
    }

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

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

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

    modifier optionalProxy_onlyOwner {
        if (Proxy(msg.sender) != proxy && Proxy(msg.sender) != integrationProxy && messageSender != msg.sender) {
            messageSender = msg.sender;
        }
        require(messageSender == owner, "Owner only function");
        _;
    }

    event ProxyUpdated(address proxyAddress);
}


/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract IERC20 {
    function totalSupply() public view returns (uint);

    function balanceOf(address owner) public view returns (uint);

    function allowance(address owner, address spender) public view returns (uint);

    function transfer(address to, uint value) public returns (bool);

    function approve(address spender, uint value) public returns (bool);

    function transferFrom(address from, address to, uint value) public returns (bool);

    // ERC20 Optional
    function name() public view returns (string);

    function symbol() public view returns (string);

    function decimals() public view returns (uint8);

    event Transfer(address indexed from, address indexed to, uint value);

    event Approval(address indexed owner, address indexed spender, uint value);
}


// https://docs.synthetix.io/contracts/ProxyERC20
contract ProxyERC20 is Proxy, IERC20 {
    constructor(address _owner) public Proxy(_owner) {}

    // ------------- ERC20 Details ------------- //

    function name() public view returns (string) {
        // Immutable static call from target contract
        return IERC20(target).name();
    }

    function symbol() public view returns (string) {
        // Immutable static call from target contract
        return IERC20(target).symbol();
    }

    function decimals() public view returns (uint8) {
        // Immutable static call from target contract
        return IERC20(target).decimals();
    }

    // ------------- ERC20 Interface ------------- //

    /**
     * @dev Total number of tokens in existence
     */
    function totalSupply() public view returns (uint256) {
        // Immutable static call from target contract
        return IERC20(target).totalSupply();
    }

    /**
     * @dev Gets the balance of the specified address.
     * @param account The address to query the balance of.
     * @return An uint256 representing the amount owned by the passed address.
     */
    function balanceOf(address account) public view returns (uint256) {
        // Immutable static call from target contract
        return IERC20(target).balanceOf(account);
    }

    /**
     * @dev Function to check the amount of tokens that an owner allowed to a spender.
     * @param owner address The address which owns the funds.
     * @param spender address The address which will spend the funds.
     * @return A uint256 specifying the amount of tokens still available for the spender.
     */
    function allowance(address owner, address spender) public view returns (uint256) {
        // Immutable static call from target contract
        return IERC20(target).allowance(owner, spender);
    }

    /**
     * @dev Transfer token for a specified address
     * @param to The address to transfer to.
     * @param value The amount to be transferred.
     */
    function transfer(address to, uint256 value) public returns (bool) {
        // Mutable state call requires the proxy to tell the target who the msg.sender is.
        target.setMessageSender(msg.sender);

        // Forward the ERC20 call to the target contract
        IERC20(target).transfer(to, value);

        // Event emitting will occur via Synthetix.Proxy._emit()
        return true;
    }

    /**
     * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
     * Beware that changing an allowance with this method brings the risk that someone may use both the old
     * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
     * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     */
    function approve(address spender, uint256 value) public returns (bool) {
        // Mutable state call requires the proxy to tell the target who the msg.sender is.
        target.setMessageSender(msg.sender);

        // Forward the ERC20 call to the target contract
        IERC20(target).approve(spender, value);

        // Event emitting will occur via Synthetix.Proxy._emit()
        return true;
    }

    /**
     * @dev Transfer tokens from one address to another
     * @param from address The address which you want to send tokens from
     * @param to address The address which you want to transfer to
     * @param value uint256 the amount of tokens to be transferred
     */
    function transferFrom(address from, address to, uint256 value) public returns (bool) {
        // Mutable state call requires the proxy to tell the target who the msg.sender is.
        target.setMessageSender(msg.sender);

        // Forward the ERC20 call to the target contract
        IERC20(target).transferFrom(from, to, value);

        // Event emitting will occur via Synthetix.Proxy._emit()
        return true;
    }
}

Contract ABI

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Library Used

SafeDecimalMath : 0x34a5ef81d18f3a305ae9c2d7df42beef4c79031c

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