A hard fork occurs when a cryptocurrency splits into two distinct currencies. The first notable hard fork was Bitcoin Cash, which separated from Bitcoin at block #478,558 on August 1, 2017. Since then, forks of Bitcoin and other blockchains have become more common. We list hard forks mainly for informational purposes and because they can resemble dividends or airdrops. However, we cannot verify the safety or legitimacy of any hard fork, so always exercise caution and claim forks using the private key of an empty wallet.