As an innovative database technology, blockchain enables the transparent sharing of data across a network. Blockchain databases prevent data from being deleted or modified without consensus across the network by maintaining chronological consistency. Developers can use Blockchain to create a secure and immutable ledger for tracking assets such as payments, orders, and user accounts.
The five types of blockchain are Private (a permissioned blockchain managed by a central authority or organization), Public (open to everyone and widely used for mining and exchanging cryptocurrencies), Hybrid (a fusion of private and public blockchains), Consortium (addresses the limitations of public and private blockchains and is collectively managed by numerous organizations instead of a single one). The main industrial applications of blockchain are finance, data storage, governance, non-fungible tokens, and the Internet of Things.