There was a time when people used to transcript their business and transitions papers or in diaries. As the world starts moving towards the digital era, these diaries also became digital. But with the ages, these diaries got some upgrades and now what we are seeing is “Blockchain". Yes, Blockchain is one big upgrade in term of Digital diaries. It became known to the world when Cryptocurrencies came into existence. Normal people started to know about it then. Now it is being used in making other smart systems. So let’s find out about the Blockchain.