Abstract

The blockchain technology has received in various professional contexts and on media a big emphasis, but it still is an on-progress technology. To be properly exploited, the blockchain technology requires a big effort by the research community to overcome some “technicalµ criticalities. It also requires time to be assimilated and understood in all its aspects in to be effectively deployed in different application contexts. In the following we will briefly describe several issues which characterize the most famous current implementations as well as the main characteristics of the new ones