Читать книгу Cryptocurrency All-in-One For Dummies онлайн

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A node is an electronic device that does the bookkeeping job in the blockchain network, making the whole decentralized thing possible. The device can be a computer, a cellphone, or even a printer, as long as it’s connected to the Internet and has access to the blockchain network.

As the owners of nodes (see the preceding section) willingly contribute their computing resources to store and validate transactions, they have the chance to collect the transaction fees and earn a reward in the underlying cryptocurrency for doing so. This process is known as mining, and the owners who do it are miners.

Here’s how mining works: Cryptocurrency miners solve cryptographic puzzles (via software) to add transactions to the ledger (the blockchain) in the hope of getting coins as a reward. It’s called mining because of the fact that this process helps extract new cryptocurrencies from the system. Anyone, including you, can join this group. Your computer needs to “guess” a random number that solves an equation that the blockchain system generates. In fact, your computer has to calculate many 64-character strings or 256-bit hashes and check with the challenge equation to see whether the answer is right. That’s why it’s so important that you have a powerful computer. The more powerful your computer is, the more guesses it can make in a second, increasing your chances of winning this game. If you manage to guess right, you earn Bitcoins and you get to write the “next page” of Bitcoin transactions on the blockchain. Head to ssss1 if you’re interested to learn more.