The "best" use of blockchain type technology I have seen is the NIST randomness beacon, though I can't think of many applications other than a lottery or where

The "best" use of blockchain type technology I have seen is the NIST randomness beacon, though I can't think of many applications other than a lottery or where you need to formally prove you used random numbers to pick something. [0]: https://www.nist.gov/programs-projects/nist-randomness-beacon https://www.nist.gov/programs-projects/nist-randomness-beaco... [1]: https://beacon.nist.gov/home https://beacon.nist.gov/home