Of course, no one alive will ever see or do anything with this effectively intangible real thing, so it is all a mental exercise that is made practical only when exchanging for tangible currency or items.
This is what cryptocurrency effectively does, too.
It is no different than saying you own land on Mercury and believe its worth $100.
https://www.star-registration.com/?gclid=EAIaIQobChMIwbyEv9vv2QIVWLjACh0nyQdbEAAYASAAEgKuJ_D_BwE
At LEAST you get a ‘certificate’ here!