[lmilcin]

Not even that.

A house drawn with a crayon can be considered an artwork or may have sentimental value.

You also have clear ownership of that artwork that you can defend in court.

You will also not loose "ownership" the moment the business that certifies it goes out of business or looses their database to ransomware.

[geerlingguy]

Ooh, we could take a picture of that, host it on Imgur, and sell the link as an NFT!