Blockchain#
A blockchain is a distributed database that maintains a growing list of ordered records called blocks. Each block contains a timestamp and a link to the previous block, which creates a chain of blocks and ensures that the data contained in the blocks cannot be modified. Blockchain technology is most commonly associated with the use of cryptocurrencies, such as bitcoin, but it has many other potential uses, such as tracking supply chain information, verifying the provenance of art and other valuable items, and securely storing medical records. Blockchain technology is based on the principles of decentralization, immutability, and security, which makes it well-suited for applications where these properties are important.