Address Details
contract

0xDA7a001b254CD22e46d3eAB04d937489c93174C3

Creator
0x6a885b–d7e2b9 at 0xf371c1–5d20b8
Balance
0 CELO ( )
Locked CELO Balance
0.00 CELO
Voting CELO Balance
0.00 CELO
Pending Unlocked Gold
0.00 CELO
Tokens
Fetching tokens...
Transactions
1 Transactions
Transfers
0 Transfers
Gas Used
27,721
Last Balance Update
26663016
This contract has been partially verified via Sourcify. View contract in Sourcify repository
Contract name:
StdReferenceProxy




Optimization enabled
true
Compiler version
v0.6.11+commit.5ef660b1




Optimization runs
200
EVM Version
istanbul




Verified at
2022-01-10T06:14:48.054063Z

browser/StdReferenceProxy.sol

// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.6.11;
pragma experimental ABIEncoderV2;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * onlyOwner, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * onlyOwner functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

interface IStdReference {
    /// A structure returned whenever someone requests for standard reference data.
    struct ReferenceData {
        uint256 rate; // base/quote exchange rate, multiplied by 1e18.
        uint256 lastUpdatedBase; // UNIX epoch of the last time when base price gets updated.
        uint256 lastUpdatedQuote; // UNIX epoch of the last time when quote price gets updated.
    }

    /// Returns the price data for the given base/quote pair. Revert if not available.
    function getReferenceData(string memory _base, string memory _quote)
        external
        view
        returns (ReferenceData memory);

    /// Similar to getReferenceData, but with multiple base/quote pairs at once.
    function getReferenceDataBulk(string[] memory _bases, string[] memory _quotes)
        external
        view
        returns (ReferenceData[] memory);
}

abstract contract StdReferenceBase is IStdReference {
    function getReferenceData(string memory _base, string memory _quote)
        public
        virtual
        override
        view
        returns (ReferenceData memory);

    function getReferenceDataBulk(string[] memory _bases, string[] memory _quotes)
        public
        override
        view
        returns (ReferenceData[] memory)
    {
        require(_bases.length == _quotes.length, "BAD_INPUT_LENGTH");
        uint256 len = _bases.length;
        ReferenceData[] memory results = new ReferenceData[](len);
        for (uint256 idx = 0; idx < len; idx++) {
            results[idx] = getReferenceData(_bases[idx], _quotes[idx]);
        }
        return results;
    }
}

contract StdReferenceProxy is Ownable, StdReferenceBase {
    IStdReference public ref;

    constructor(IStdReference _ref) public {
        ref = _ref;
    }

    /// Updates standard reference implementation. Only callable by the owner.
    function setRef(IStdReference _ref) public onlyOwner {
        ref = _ref;
    }

    /// Returns the price data for the given base/quote pair. Revert if not available.
    function getReferenceData(string memory _base, string memory _quote)
        public
        override
        view
        returns (ReferenceData memory)
    {
        return ref.getReferenceData(_base, _quote);
    }
}

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_ref","internalType":"contract IStdReference"}]},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"","internalType":"struct IStdReference.ReferenceData","components":[{"type":"uint256","name":"rate","internalType":"uint256"},{"type":"uint256","name":"lastUpdatedBase","internalType":"uint256"},{"type":"uint256","name":"lastUpdatedQuote","internalType":"uint256"}]}],"name":"getReferenceData","inputs":[{"type":"string","name":"_base","internalType":"string"},{"type":"string","name":"_quote","internalType":"string"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple[]","name":"","internalType":"struct IStdReference.ReferenceData[]","components":[{"type":"uint256","name":"rate","internalType":"uint256"},{"type":"uint256","name":"lastUpdatedBase","internalType":"uint256"},{"type":"uint256","name":"lastUpdatedQuote","internalType":"uint256"}]}],"name":"getReferenceDataBulk","inputs":[{"type":"string[]","name":"_bases","internalType":"string[]"},{"type":"string[]","name":"_quotes","internalType":"string[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IStdReference"}],"name":"ref","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setRef","inputs":[{"type":"address","name":"_ref","internalType":"contract IStdReference"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]}]

Contract Creation Code

Verify & Publish 
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Deployed ByteCode

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