Your government dollars at work. The DHS has provided a flowchart/cheatsheet on whether or not you need a blockchain. (Not completely comprehensive, but a good start.)
![EI-2UDoVUAExC7i EI-2UDoVUAExC7i](https://community.isc2.org/t5/image/serverpage/image-id/3664iBF18280CF5995213/image-size/large?v=v2&px=999)
............
Other posts: https://community.isc2.org/t5/forums/recentpostspage/user-id/1324864413
This message may or may not be governed by the terms of
http://www.noticebored.com/html/cisspforumfaq.html#Friday or
https://blogs.securiteam.com/index.php/archives/1468