What is Blockchain?

The first time I used to here this word it used to scare me and anytime we used to have staff meetings I used to avoid it whenever someone started a discussion on it.

When I decided to do a research on it and use it in my software development,I discovered its a very simple word just like an API.If I have just scared you with that word API dont wory you will understand if you continue reading my blog posts.

So lets divide this term Blockchain into 2,we have a block and a chain,what does our block contain,it contains a record of data which is accessed with other online applications for verification of authenticity.A chain simply means this blocks are linked in a chain manner and each block contains cryptographic hash of the previous block.

In a simple way we can say blockchain is a growing list of records called blocks which are linked using cryptography .Each block contains a cryptographic hash of the previous block ,a timestamp and transaction data.