A cryptocurrency is a digital asset designed to work as medium of exchange that us cryptography to secure its transactions.some of cryptocurrencies are: Ethereum Litecoin bitcoin among these bitcoin is ruling the world.bitcoins are created as a reward process of mining and transactions.they can be exchanged to other countries.precisely cryptocurrency is nothing but a artifcial money which can be exchanged to other countries. bitcoin is developed in the year 2008 where a domain was generated with the name bitcoin.org and on 18 of august, and it was registered on November of same year. Nakamoto implemented the bitcoin software as open source code and released it in 2009. One of the first supporters, adopters, and contributors to bitcoin was the receiver of the first bitcoin transaction, programmer hall finney . Finney downloaded the bitcoin software the day it was released, and received 10 bitcoins from Nakamoto in the world's first bit...