The most straightforward answer to the question, what is a cryptocurrency, is the phrase virtual money. Each virtual currency is built on blockchain technology. Digital currency Bitcoin, like other cryptocurrencies, is used to pay bills or transactions. But at the same time, digital money does not have a central governing body. All operations are checked by the Blockchain network, i.e., by other users. Each block consists of chain operations. They are all interconnected. Therefore, it is impossible to fake or cancels a deal.
Blockchain technology is the foundation of all cryptocurrencies. The algorithm allows consensus to be reached without third-party access. This review was created so that the Blockchain was explained.