Token USD Base Coin

 

Overview [ERC-20]

Price
$1.00 @ 0.000314 Eth (-0.10%)
Fully Diluted Market Cap
Max Total Supply:
84,467,987.986483 USDbC

Holders:
268,876 ( 0.100%)
 
Balance
1,085.721241 USDbC

Value
$1,085.04 ( ~0.340927383662646 Eth) [0.0013%]
0x98db3a41bf8bf4ded2c92a84ec0705689ddeef8b
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x70dd44F96B261c596589C984Db23FA107919Db85
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Proxy

Compiler Version
v0.8.15+commit.e14f2714

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at basescan.org on 2023-07-22
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;

/// @title Proxy
/// @notice Proxy is a transparent proxy that passes through the call if the caller is the owner or
///         if the caller is address(0), meaning that the call originated from an off-chain
///         simulation.
contract Proxy {
    /// @notice The storage slot that holds the address of the implementation.
    ///         bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
    bytes32 internal constant IMPLEMENTATION_KEY =
        0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /// @notice The storage slot that holds the address of the owner.
    ///         bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1)
    bytes32 internal constant OWNER_KEY =
        0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /// @notice An event that is emitted each time the implementation is changed. This event is part
    ///         of the EIP-1967 specification.
    /// @param implementation The address of the implementation contract
    event Upgraded(address indexed implementation);

    /// @notice An event that is emitted each time the owner is upgraded. This event is part of the
    ///         EIP-1967 specification.
    /// @param previousAdmin The previous owner of the contract
    /// @param newAdmin      The new owner of the contract
    event AdminChanged(address previousAdmin, address newAdmin);

    /// @notice A modifier that reverts if not called by the owner or by address(0) to allow
    ///         eth_call to interact with this proxy without needing to use low-level storage
    ///         inspection. We assume that nobody is able to trigger calls from address(0) during
    ///         normal EVM execution.
    modifier proxyCallIfNotAdmin() {
        if (msg.sender == _getAdmin() || msg.sender == address(0)) {
            _;
        } else {
            // This WILL halt the call frame on completion.
            _doProxyCall();
        }
    }

    /// @notice Sets the initial admin during contract deployment. Admin address is stored at the
    ///         EIP-1967 admin storage slot so that accidental storage collision with the
    ///         implementation is not possible.
    /// @param _admin Address of the initial contract admin. Admin as the ability to access the
    ///               transparent proxy interface.
    constructor(address _admin) {
        _changeAdmin(_admin);
    }

    // slither-disable-next-line locked-ether
    receive() external payable {
        // Proxy call by default.
        _doProxyCall();
    }

    // slither-disable-next-line locked-ether
    fallback() external payable {
        // Proxy call by default.
        _doProxyCall();
    }

    /// @notice Set the implementation contract address. The code at the given address will execute
    ///         when this contract is called.
    /// @param _implementation Address of the implementation contract.
    function upgradeTo(address _implementation) public virtual proxyCallIfNotAdmin {
        _setImplementation(_implementation);
    }

    /// @notice Set the implementation and call a function in a single transaction. Useful to ensure
    ///         atomic execution of initialization-based upgrades.
    /// @param _implementation Address of the implementation contract.
    /// @param _data           Calldata to delegatecall the new implementation with.
    function upgradeToAndCall(address _implementation, bytes calldata _data)
        public
        payable
        virtual
        proxyCallIfNotAdmin
        returns (bytes memory)
    {
        _setImplementation(_implementation);
        (bool success, bytes memory returndata) = _implementation.delegatecall(_data);
        require(success, "Proxy: delegatecall to new implementation contract failed");
        return returndata;
    }

    /// @notice Changes the owner of the proxy contract. Only callable by the owner.
    /// @param _admin New owner of the proxy contract.
    function changeAdmin(address _admin) public virtual proxyCallIfNotAdmin {
        _changeAdmin(_admin);
    }

    /// @notice Gets the owner of the proxy contract.
    /// @return Owner address.
    function admin() public virtual proxyCallIfNotAdmin returns (address) {
        return _getAdmin();
    }

    //// @notice Queries the implementation address.
    /// @return Implementation address.
    function implementation() public virtual proxyCallIfNotAdmin returns (address) {
        return _getImplementation();
    }

    /// @notice Sets the implementation address.
    /// @param _implementation New implementation address.
    function _setImplementation(address _implementation) internal {
        assembly {
            sstore(IMPLEMENTATION_KEY, _implementation)
        }
        emit Upgraded(_implementation);
    }

    /// @notice Changes the owner of the proxy contract.
    /// @param _admin New owner of the proxy contract.
    function _changeAdmin(address _admin) internal {
        address previous = _getAdmin();
        assembly {
            sstore(OWNER_KEY, _admin)
        }
        emit AdminChanged(previous, _admin);
    }

    /// @notice Performs the proxy call via a delegatecall.
    function _doProxyCall() internal {
        address impl = _getImplementation();
        require(impl != address(0), "Proxy: implementation not initialized");

        assembly {
            // Copy calldata into memory at 0x0....calldatasize.
            calldatacopy(0x0, 0x0, calldatasize())

            // Perform the delegatecall, make sure to pass all available gas.
            let success := delegatecall(gas(), impl, 0x0, calldatasize(), 0x0, 0x0)

            // Copy returndata into memory at 0x0....returndatasize. Note that this *will*
            // overwrite the calldata that we just copied into memory but that doesn't really
            // matter because we'll be returning in a second anyway.
            returndatacopy(0x0, 0x0, returndatasize())

            // Success == 0 means a revert. We'll revert too and pass the data up.
            if iszero(success) {
                revert(0x0, returndatasize())
            }

            // Otherwise we'll just return and pass the data up.
            return(0x0, returndatasize())
        }
    }

    /// @notice Queries the implementation address.
    /// @return Implementation address.
    function _getImplementation() internal view returns (address) {
        address impl;
        assembly {
            impl := sload(IMPLEMENTATION_KEY)
        }
        return impl;
    }

    /// @notice Queries the owner of the proxy contract.
    /// @return Owner address.
    function _getAdmin() internal view returns (address) {
        address owner;
        assembly {
            owner := sload(OWNER_KEY)
        }
        return owner;
    }
}

Contract Security Audit

Contract ABI

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Deployed Bytecode

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://7a7ec8e9efb10b26c64aa15ad007a832593d7a72c75b969fd318445cde7c21c6
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