Blockchain technology is described as an unchangeable distributed ledger system which ensures an underlying level of security, as well as decentralization as well as information, making digital cryptocurrency transactions more easily accessible and more secure. Blockchain technology is described as immutable because changes to data are more difficult while there's also no interference by a third party.

When the transaction is completed after the transaction is completed, personal information remains in the dark. But, the systems that process the transaction will record the transaction's details. So, based on the established history of transactions that have occurred and the transaction history, it is not possible for the data to be altered in any way. To implement any modifications in one system, all systems would have to be altered in order to make the change impossible.

Blockchain technology was first introduced in 2009, when Santoshi Nakamoto introduced the Bitcoin Blockchain. This is the reason why blockchain technology is frequently associated with Bitcoin since then, it has grown to become a vital element of the digital world.