Originally, blockchain was just the computer science term for how to struc- ture and share data. Today blockchains are hailed the "fifth evolution" of computing.

Or more commonly now the backbone of the Web3 movement. Blockchains are a novel approach to the distributed database. The innovation comes from incorporating old technology in new ways.

You can think of block- chains as distributed databases that a group of individuals controls and that store and share information.

There are many different types of blockchains and blockchain applications.

Block- chain is an all-encompassing technology that is integrating across platforms and hardware all over the world.