FWIW, my impression is that enforcement per se doesn't matter, but it does matter what source of truth the enforcement authority looks at. Somebody puts an ent

FWIW, my impression is that enforcement per se doesn't matter, but it does matter what source of truth the enforcement authority looks at. Somebody puts an entry on the blockchain that says they own my house. OK so what? Nobody cares. They can't get that enforced. If you want to make the sale "real" to the authorities, you have to enter it into the land registry - but now you have a coordination problem. Do we put it into the blockchain first (and hence you pay first) and then the land registry? Or vice versa? Either one requires trust. Hm, maybe we better involve a trusted third party like an escrow company... oh wait we just reinvented the existing system. All of this is not dissimilar to people selling NFTs of someone else's art. And you'll see the same problems if/when they try to violate copyright on that basis. If you could convince the relevant authorities that the blockchain was the system-of-record then you'd have something useful. But with all the problems of losing ownership, hacking, inability to recover defrauded assets, etc, what are the odds of that happening?