Blockchain is the underlying technology that powers Bitcoin, the digital currency. In October 2008, A man named Satoshi Nakamoto published A paper titled Bitcoin:A Peer-to-peer Electronic Cash System Bitcoin:A Peer-to-peer Electronic Money System. Three months later, on Jan. 4, 2009, Nakamoto created the first block, bitcoin's founding block, on a small server in Helsinki, Finland, and was rewarded with the first 50 bitcoins. At this point, a set of bitcoin's underlying technology w...