Unless someone is living under a rock, there is no way that one has not come across the word “Blockchain”. In fact, the word blockchain seems to be a buzzword for a couple of years. Although there has been a lot of hype about blockchain technology lately. Still, a lot of folks are unaware of what blockchain is and how does it work. Blockchain is a distributed ledger, meaning that among all peers in the network, a ledger is spread across the network, and each peer has its own copy of the complete ledger. A block in a blockchain is