Bitcoin and Blockchain are two different things, which people often misunderstand. Blockchain is a much larger concept than Bitcoin, you can say Bitcoin is an application of Blockchain.
So, what is a Blockchain?
A quick and simple definition of Blockchain — A distributed online ledger system that has multiple nodes with each node (a computer) maintaining an updated copy of the ledger. There can be any number of nodes and any person or organization can become a node.… (read more)