rfikki

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

/// @title CurrencyCoin Interface
/// @notice Interface for interacting with the CurrencyCoin contract
interface CurrencyCoin {

rfikki

// SPDX-License-Identifier: MIT
pragma solidity 0.8.30;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

rfikki

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

/**
 * @title Interface for the external CurrencyCoin contract.
 * @dev This interface defines the functions that the WrappedCurrencyCoin contract
 * will call on the original 2015 Currency.sol contract.

rfikki

//Most, basic default, standardised Token contract.
//Based on standardised APIs & slightly extended. https://github.com/ethereum/wiki/wiki/Standardized_Contract_APIs
//adds AddressApproval & AddressApprovalOnce events
//approve & approveOnce works on premise that approved always takes precedence.
//adds unapprove to basic coin interface.

contract Coin {
    function sendCoin(uint _value, address _to) returns (bool _success) {}
    function sendCoinFrom(address _from, uint _value, address _to) returns (bool _success) {}
    function coinBalance() constant returns (uint _r) {}

rfikki

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

interface CurrencyCoin {

    function coinBalanceOf(address _owner) external returns (uint256);
    function sendCoin(uint256 _amount, address _receiver) external;

rfikki

Contract at 0x318143cFd742FB637f4833FF0EAfEe66c9a35327 

Created:  (Aug-25-2015 02:58:28 AM UTC)

Solidity version: 0.1.3-0/.-/clang/int linked to libethereum-0.9.92-0/.-/clang/int
Change to: v0.1.3+commit.028f561d tested on 3.5
Text Wrap Enable Optimization
https://chriseth.github.io/browser-solidity/#version=soljson-v0.3.5+commit.5f97274a.js&optimize=true

Bytecode:

rfikki

// Submitted to Etherscan.io for verification for contract at 0x8494F777d13503BE928BB22b1F4ae3289E634FD3

/* rfikki was here in 2015 */

contract currency {
    
    struct Account {
        uint balance;
        mapping ( address => uint) withdrawers;
    }

rfikki

// Doku see https://drive.google.com/file/d/0Bzjj9RC5wV6KRndsd1FQOGFPb0E/view?usp=sharing

contract FinneyDonationGamble {
    // Basics
    address foundation = 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae;
    // History
    uint256 Bets_total_number;    // Number of bets
    uint256 Bets_since_last_win;  // Number of bets since last win
    uint256 Sum_of_Payouts;       // Sum pay out
    uint256 Sum_of_Donations;     // Sum donations

rfikki

/**
 *Code author/customizations by rfikki - [email protected]
 *Created for illustration only
 *Using OpenZeppelin as basis
 *To be submitted for verification at Etherscan.io on 2023-xx-xx
*/

// File: @openzeppelin/contracts/utils/Context.sol

rfikki

Total missed: 2

Total guesses: 6158

First guess: spend

aback

• ⬜⬜🟩🟩🟩: quack

abate