Nowadays, the topic about cryptocurrency, mining and blockchain is a main agenda for a lot of Hi-Tech web-sites. During the time we have seen the birth of new directions in the digital economy such as a mining, cryptocurrency exchange, creating altcoins, ICO and startups based on the blockchain technology. However, the process of state regulation of this activity is not yet clear. In some countries the public authorities have not decided yet how they will regulate cryptocurrency market that's why entrepreneurs work at their own risk.