Bitcoin is easiest to call a kind of hybrid asset with an evolving legal framework. Digital mode: features, decentralized nature, anonymity, high transaction speed, reliability, lack of regulators. If to look practically, today bitcoin is used mainly as an investment, even rather a speculative asset. One can observe attempts to create its currency functionality, but so far this format of using crypto currency has not gained much popularity, since its price is too unstable. As the preservation of the cost of bitcoin, and even today it is impossible to use.