BlockChain

About Blockchain ❓ ❓

The concept of Blockchain came from Stuart Haber and W.scott Stornetta.

Defnition

A blockchain is a continuosly growing list of records,called blocks,which are linked and secured using cryptography.

Genesis Block

A blockchain consists of Genesis Block which is the first block in a block chain it does not consists of Previous hash as it is the first block it contains hash.

What Does a Block constitues of : ❓ ❓

1. The block has a data stored inside it

2. The Block has it's own hash and previous hash

3. A hash is like a fingerprint of a block which is 64 character long

4. The Block is cryptographicaaly connected with previous hash so it makes chain