By this point, I think it’s pretty obvious that blockchain doesn’t have any good use cases beyond financial speculation and scams/fraud.
It has one legitimate use case that I can think of. Immutable audit logs, even then there are better options.
so in practice it actually doesn’t, and enterprise “blockchain” systems tend to evolve:
- do the real work in the blockchain bit
- do the real work in a program with an SQL database attached, claim the blockchain is for audit logs
- every SQL DB can produce those anyway, remove the blockchain bit entirely
- don’t bother removing the word “blockchain” from your marketing copy
multiple such cases!
Careful not to conflate things like hash trees with Blockchains. The former do get used for stuff like certificate transparency logs right now, because it is a sensible technology. Blockchains could do exactly the same thing (because they’re based on the same underlying principle), only with much more expense and waste, so there’s basically no point.