this is my first time of review on Bitcoin. In my resear I have discovered that, Bitcoin is the first among all other coin. That is, Bitcoin is the parent of all. In the market of cryptocurrency Bitcoin is the lead and is the best. Bitcoin is a decentralized currency, it has no need of central bank or single administrator that can be sent from user to user. It is a network without the need of third party or intermediaries. This make it easier for individual who want to invest in Bitcoin, because there is no need of any intermediaries. And aslo Bitcoin is a digital asset that exists online, it like electronic mixture/ combination of cash and gold, in veiw of this we can reduce that Bitcoin is entirely digitalize.