Bitcoin, the most recognizable crypto name, has increased from a low point of around $5,000 in March of 2020 to a price of more than $51,000 as of the time of this article’s writing. Rival currencies, including Ethereum and Litecoin, have emerged as realistic competitors — and even meme currencies like Dogecoin are still floating around. On top of that, a growing number of merchants are accepting cryptocurrency as a form of payment. Nearly a third of all U.S. small businesses currently accept...