Blockchain is an innovative technology, that maintains a public ledger.
It maintains a continuously growing list of ordered records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Blockchain technology is used to record transactions across many computers so that the record cannot be altered retroactively without the alteration of all subsequent blocks and the consensus of the network.
The technology offers the potential to serve a very wide range of applications being considered as a legitimate disruptor for many major industries.