Blockchain technology is used to maintain the ownership history of digital assets on a decentralized, distributed ledger. Because no data is saved, there can be modifications; blockchain technology has the power to disrupt a number of industries, including payments, cybersecurity, and healthcare. Find out more about its makeup, operation, and history. A blockchain is a digital transactional ledger that is impenetrable to hackers and modification by a network of computers. Join Blockchain course in Chennai at FITA Academy to learn more about blockchain.