What's the point of the database being open? That doesn't seem all that exciting and there are plenty of examples of other open databases.

> property is moved to an open database

But it's not really in most cases. Only the claim of ownership is in the database.

And the claim part is important.

> Aston martin can now have a lounge in France where only Aston Martin owners can join

What if I sell my car and don't transfer my NFT showing ownership of the car? Who will enforce the requirement that I must transfer the NFT when I sell my car?