Tie this to a proof of « browse » and a blockchain to weed out the big players and you got yourself a business model !
blockchain technology's biggest problem is the fact that its use cases touch the ideological foundations of our global culture. And bitcoin operated on the foundational level of any all governments in the world.
Bitcoin is just one use case of the technology, another is land registries. Again, foundational institutions of society; not the kind of thing that has ever been peacefully reformed ever.
Your comment is evidence that 'cultural directors' of our civilization decided to destroy this technology. However it's funny to notice that they will proceed to implement their own versions of it: possibly the renminbi unless the dollars bomb them out of existence? but I'm so far into guesswork that this whole comment ought to be voted into the really light grays.
People have suggested this before. However, using "blockchain" for land registries doesn't seem any better than using a database + audit trail. eg standard tech
Just because the land registry is stored in a block chain doesn't make it incorruptible.
The exact same person/people that would submit correct information into the blockchain (eg gov officer) can be persuaded ($5 wrench approach, etc) to submit incorrect info to the blockchain: https://xkcd.com/538/
Same problem set as the existing tech.