What Is A BlockChain And What Is It For?

[Eli]

Blockchain is a public register in which transactions between multiple users belonging to the same network are stored in a secure, verifiable and permanent way. The data relating to the exchanges are saved inside cryptographic blocks, connected in a hierarchical manner to each other. This creates an endless chain of data blocks -- hence the name blockchain -- that allows you to trace and verify all the transactions you have ever made. Blockchain has a technical infrastructure and functionality that is able to guarantee a high level of security, stability, and scalability. This block of chains characterizes Bitcoin and have actually enabled its value to skyrocket. See Ref.

Below are the videos of experts explaining what is the blockchain; how and what is it used for:

[Eli]

Blockchain explained in an easy and simple way

[Eli]

Here is the BlockChain Discussion led by Sandra Chogo: