[thwarted]

There is potential use for storing the history of real estate ownership in a more robust way, as part of doing a title search as a prerequisite for a real estate transaction. But that won't get rid of the need for title insurance, which exists exactly to offset the issues and dispute around ownership and liens against real estate that put undo burden on real estate transactions. And it's probably folly to encode into law that a single "blockchain" of real estate transactions is final and authoritative without any kind of legal review, which is also why title insurance exists. It would make things more robust and perhaps faster to verify, but it doesn't get rid of the social (non-technical) issues around real estate ownership transfer, either historically or at the time of the transaction.