What is blockchain and its example?

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system . A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.

Cryptocurrencies are digital currencies that use blockchain technology to record and secure every transaction . A cryptocurrency (for example, Bitcoin) can be used as a digital form of cash to pay for everything from everyday items to larger purchases like cars and homes.

Blockchain technologies are the digital, distributed, and decentralized ledger representing the most virtual currencies that are accountable for logging all transactions without the need for a financial mediator, such as a bank . In other words, it’s a new means of transmitting funds and logging information.