in short, anyone who wants to participate in updating the ledger of Bitcoin transactions, known as the blockchain, can do so. All you need is to guess a random number that solves an equation generated by the system. Sounds simple, right? Of course, this guessing is all done by your computer. The more powerful your computer is, the more guesses you can make in a second, increasing your chances of winning this game. If you manage to guess right, you earn bitcoins and get to write the “next page” of Bitcoin transactions on the blockchain.