What is Blockchain?

Updated: Apr 4

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. Each block in the chain contains a number of transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant’s ledger. The decentralised database managed by multiple participants is known as Distributed Ledger Technology (DLT).

Blockchain is a type of DLT in which transactions are recorded with an immutable cryptographic signature called a hash.

Definition – Distributed digital ledgers that record, authenticate and prevent duplication of transactions using algorithms and specific set of rules, without need for central authority

If you have been following banking, investing, or cryptocurrency over the last ten years, you may have heard the term “blockchain,” the record-keeping technology behind the Bitcoin network.