Contract 0xc5680d24c3086e10f618b5176a59e90d6284be9f

 
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0xb29a94088c1ff9bbd471ec50dbf1c7a36e439617cb1b8e9f1523eaded1c6a41aNominate New Own...95958352020-03-03 3:42:04476 days 16 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.000089022
0xba736cb69a0c4ac26ad4dd62fa316196200e59478aef5ddbb9af567f39dec22dSet Associated C...95192222020-02-20 9:12:17488 days 10 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.0001773247
0x3251377b562978b85194a9551f64feb6d77123f8854cef4ea7ca655a9f5d7d07Set Associated C...95191842020-02-20 9:03:17488 days 11 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.0002362568
0xed75b0119e5124ad52f55272e9ec26b23e72f1ab2425199dabd56ec6879072f2Set Associated C...91237952019-12-18 3:56:59552 days 16 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.0002953210
0xec97500648cdd800dd7fbe0ccc65c56bdce6bb35cc2cd80bcc6205ca9e62587cSet Associated C...86233122019-09-26 7:55:09635 days 12 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.0006211821
0x3a4d599eac091e0a66b98365f649bd3eb8622ee262d89be0157fe7b2636bea39Accept Ownership83831992019-08-19 21:17:02672 days 22 hrs ago0xb0a23f40de7f776a4f20153e8995ed3e7d7c8487 IN  Synthetix: Token State sCEX0 Ether0.0000382742
0xdc7aa27c85df3b5c6e180d0699776891ff562f10814460ab7f035526f44e1067Nominate New Own...83824572019-08-19 18:27:30673 days 1 hr agoSynthetix: Deployer 10 IN  Synthetix: Token State sCEX0 Ether0.000222795
0xe7c392a69b378a8bb6ba58d3e8c8663287dea8efe7c55e8cd03faa9a1232236dSet Associated C...83824042019-08-19 18:17:54673 days 1 hr agoSynthetix: Deployer 10 IN  Synthetix: Token State sCEX0 Ether0.00022295
0xe48a03f71c8904c43563a43f2d3aefe917904da6b2064f5cc9902559b20ff7b50x6080604083823922019-08-19 18:16:58673 days 1 hr agoSynthetix: Deployer 10 IN  Contract Creation0 Ether0.002792685
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xBF093390d8046ae2d0f5465DEC7001d65DC159d5

Contract Name:
TokenState

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:       State.sol
version:    1.1
author:     Dominic Romanowski
            Anton Jurisevic

date:       2018-05-15

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

This contract is used side by side with external state token
contracts, such as Synthetix and Synth.
It provides an easy way to upgrade contract logic while
maintaining all user balances and allowances. This is designed
to make the changeover as easy as possible, since mappings
are not so cheap or straightforward to migrate.

The first deployed contract would create this state contract,
using it as its store of balances.
When a new contract is deployed, it links to the existing
state contract, whose owner would then change its associated
contract to the new one.

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


contract State is Owned {
    // the address of the contract that can modify variables
    // this can only be changed by the owner of this contract
    address public associatedContract;


    constructor(address _owner, address _associatedContract)
        Owned(_owner)
        public
    {
        associatedContract = _associatedContract;
        emit AssociatedContractUpdated(_associatedContract);
    }

    /* ========== SETTERS ========== */

    // Change the associated contract to a new address
    function setAssociatedContract(address _associatedContract)
        external
        onlyOwner
    {
        associatedContract = _associatedContract;
        emit AssociatedContractUpdated(_associatedContract);
    }

    /* ========== MODIFIERS ========== */

    modifier onlyAssociatedContract
    {
        require(msg.sender == associatedContract, "Only the associated contract can perform this action");
        _;
    }

    /* ========== EVENTS ========== */

    event AssociatedContractUpdated(address associatedContract);
}


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

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

date:       2018-05-15

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

A contract that holds the state of an ERC20 compliant token.

This contract is used side by side with external state token
contracts, such as Synthetix and Synth.
It provides an easy way to upgrade contract logic while
maintaining all user balances and allowances. This is designed
to make the changeover as easy as possible, since mappings
are not so cheap or straightforward to migrate.

The first deployed contract would create this state contract,
using it as its store of balances.
When a new contract is deployed, it links to the existing
state contract, whose owner would then change its associated
contract to the new one.

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


/**
 * @title ERC20 Token State
 * @notice Stores balance information of an ERC20 token contract.
 */
contract TokenState is State {

    /* ERC20 fields. */
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;

    /**
     * @dev Constructor
     * @param _owner The address which controls this contract.
     * @param _associatedContract The ERC20 contract whose state this composes.
     */
    constructor(address _owner, address _associatedContract)
        State(_owner, _associatedContract)
        public
    {}

    /* ========== SETTERS ========== */

    /**
     * @notice Set ERC20 allowance.
     * @dev Only the associated contract may call this.
     * @param tokenOwner The authorising party.
     * @param spender The authorised party.
     * @param value The total value the authorised party may spend on the
     * authorising party's behalf.
     */
    function setAllowance(address tokenOwner, address spender, uint value)
        external
        onlyAssociatedContract
    {
        allowance[tokenOwner][spender] = value;
    }

    /**
     * @notice Set the balance in a given account
     * @dev Only the associated contract may call this.
     * @param account The account whose value to set.
     * @param value The new balance of the given account.
     */
    function setBalanceOf(address account, uint value)
        external
        onlyAssociatedContract
    {
        balanceOf[account] = value;
    }
}

Contract Security Audit

Contract ABI

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Library Used

safedecimalmath : 0x84d626b2bb4d0f064067e4bf80fce7055d8f3e7b

Swarm Source

bzzr://06c4a5603930fa4cb72309b5f5f73ada9096e050848286ffac5ff980207e7fd2
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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