It's hilarious that title searches and title insurance exist. And even more ridiculous that there is just no way, period, to actually verify that a would-be landlord is actually authorized to lease you a place to live.
The problem is that it has to be government administered because otherwise you’re constantly stuck with the risk that what you see won’t survive a legal challenge. This is a constant problem for ledgers because the sales pitch is about being “trust less” or distributed in some sense that everyone can participate, but making them work is an exercise in picking which third-parties you trust to settle disputes. For the most important things, that usually means the government unless part of their authority has been delegated to a private entity.
It might be an effective way to get buy in from the government if they don't have to manage much infrastructure, if they still get the (literal?) keys to intervene in things. That would require them to have the basic competency to manage their own access, though.
Similarly, it’s like if I get back to my house tonight and someone has changed the locks on the front door, I’m pretty sure I could ultimately verify that, yes, I’m the owner, but I sure am glad that due to social norms or inertia or the sheer hassle of being a squatter that is not something I have to deal with on a regular basis.
