Jurisprudential Analysis of Cryptocurrencies' Functions - Case Study of Bitcoin

Money is one of the phenomena that are used in the economic life of people for a long time. Despite the simple appearance, this phenomenon is constantly evolving. Since 2009, a new form of money has been created in the world under the title "Cryptocurrency". This exchange facility is out of reach of the banking system and the central bank and is only transmitted through cyberspace.
As this kind of money becomes widespread in the economic relations of the world, there is a serious transformation in the nature and functioning of the money. Changes in the nature and function of the economy may have different jurisprudential functions than fiat money. Therefore, it is necessary to accurately identify the jurisprudence system, the nature and economic functions of this phenomenon, and clarify the types of permissible and unlawful rulings in economic relations.
In this regard, in this research, at first the cryptocurrency is introduced and then the jurisprudential aspects of the subject were explained by two approaches of individual and governmental jurisprudence, as well as in two levels of transaction and mining. Finally, using the method of multi-stage ijtihad research and the views of the Islamic finance experts and the authorities, imitating the license terms, the use Cryptocurrency has been counted. Accordingly, one of these types of money, called Bitcoin, is adapted to those circumstances and finally the existence of the doubtful of "La Darar and La Darar" has encountered it with illegal forms.