Given the large number of types of money that people have on a daily basis, Bitcoin digital currency has been chosen. Following Bitcoin, a number of cryptocurrencies emerged. However, none of this is known as bitcoin. I agree that in the near future this paper will be used, not cash. Because bitcoin can be traded in the form of trading and wallets. Bitcoin is an advanced coin created by a decentralized association of customers that cannot directly affect bank management and state governments. The current topic is Bitcoin. The main coin in question and various coins are called altcoin, but not bitcoin. All people associated with this created cash have equal rights and equal rights and obligations. It is possible to buy computerized money without mining. Bitcoin's ground-based engineers consider it a reward for completing the "blockchain" of the approved replacement that has been added to the blockchain. People with a strong financial plan can take advantage of the opportunity to earn a small income. On the contrary, these cryptocurrency buyers have realized that it is really valuable, and basically every people has chosen to use it.