With the first cryptocurrency, Bitcoin the great story of the blockchain network started. His story begins in 2009 and is founded by S Nakamoto. It remains the most popular blockchain cryptocurrencies with millions of owners. As a community-based coin, its ever-expanding community has greatly contributed to the gain of light. Bitcoin is backed up through a source code using highly complex algorithms to avoid unauthorised manipulation of its devices. To duplicate its currency supply, it is impossible to break its source code in another. Bitcoin is listed on all the worldwide crypto-currency exchanges.