Blockchain is a way of organizing a distributed database in the form of a continuous sequential chain of blocks, where each block contains immutable information about the previous block. Most often, copies of block chains are stored on many different computers that are independent of each other, but at the same time they are all united in one network and act as confirmation of transactions for the blockchain.
Bitcoin was the first to use blockchain technology to carry out financial transactions between users. Cryptocurrency is mined using blockchain technology.
Today, blockchain is used in various fields: financial transactions, authentication and verification of rights, data management, improving the exchange of medical records, transactions with goods and raw materials, the Internet of things.
