Bitcoin, the first and most popular crypto currency, paves the way as a disruptive technology in the long-term and stable payment systems that have existed for decades. In addition to its security, two key infrastructures are likely to be key to success: power distribution and Global availability. Cryptocurrensets can transform digital trading markets by creating a free flowing trading system without money. Within two years of its peaceful launch in 2009, Bin Coin grew to billions of dollars in economic value without a basic analysis of the design of the system. Since then the growing book has identified hidden but important areas of the program, identified attacks, proposed other promising alternatives, and selected more difficult future challenges. In this paper, we provide a complete description of the details that make such a cryptocurrency a popular currency and offer new things that can be dismissed.