When Do We Need the Blockchain?

The questions When do we use the blockchain? or Where do we use the blockchain? or Why do we use the blockchain? look simple, but these questions become complicated due to the increasing utilization of the blockchain. These days, it is being explored as a standard security solution. The blockchain has unique properties, and these are entirely different from other standard security or cryptography solutions. This article gives a summary of the uses of the blockchain, while answering the above three important questions.