Research which conducted a systematic mapping study with the
goal of collecting all relevant research on Blockchain technology.
The objective is to understand the current research topics, challenges and
future directions regarding Blockchain technology from the technical
perspective.
The results show that focus in over 80% of the papers is on
Bitcoin system and less than 20% deals with other Blockchain
applications including e.g. smart contracts and licensing.
The majority
of research is focusing on revealing and improving limitations of
Blockchain from privacy and security perspectives, but many of the
proposed solutions lack concrete evaluation on their effectiveness.
Many
other Blockchain scalability related challenges including throughput
and latency have been left unstudied.
The paper from Yli-Huumo J, Ko D, Choi S, Park S & Smolander K is available under Creative Commons licence from PLOS ONE.