Top 7 Block chain challenges to go mainstream in 2019.
Description Blockchain evolution faces great challenges in the future. Please read the paper, choose one of the challenge(s) and response to the following question(s) (but not limited to): 1. What is the challenge? 2. Why has the challenge? 3. How to solve the problems? 4. Who can solve the problems? 5. When the problem can be solved? Any road map? Student is required to write a paper of approximately 1,000 words. You have to include all reference papers in your work.