Photo by Launchpresso on Unsplash

Blockchain can be best understood by thinking about a human chain. In a human chain, we have a person who has certain properties like name, color or shirt, hair, eyes, and others pointing to the next and previous person in the chain. You can set rules on who can join the chain and prevent any unauthorized elements.

Blockchain just happens to be digital and a lot more secure. The two key building blocks of a Blockchain are Block…