Abstract:
In recent years, cryptocurrencies have been in the spotlight of attention in financial markets all over the world. bitcoin, which was the first currency of this technology to be invented, still remains the most popular digital currency; however, other alternatives such as Ethereum and Ripple are gaining pace.

Bitcoin, introduced in October 2008 by Nakamoto , is a decentralized cryptocurrency. It has received increasing attention by business companies, organizations and governments since it is launched.
Over the last decade that bitcoin has been traded, many alterations have taken place from exchanges to the likelihood of closure. Nevertheless, the bitcoin has unique default benefits and properties by its structure. It is fully decentralized and depends on a sophisticated cryptographic protocol that it is difficult to counterfeit.
In this research the researcher clarified the nature , characteristics , pros and cons , and also how the bitcoin system works , through reviewing number of papers , accounting academic journals , professional publications .