[Winsaucerer]

Screenshotting the Mona Lisa or printing out a signed Mickey Mantle card is not a good analogy to copying an NFT. In the case of the NFT, the exact same bytes can be on my system as the 'owner' has.

How can I get a Mona Lisa copy that has the exact same physical makeup? Or a duplicate signed Mickey Mantle with the same ink strokes?

Digital assets can be easily duplicated identically. The only thing you're missing is some stamp on a chain that says you're the owner.

[koonsolo]

You can see it as the "signature" of the creator. Everybody owns the photograph, but only 1 person owns the signed photograph.

[Winsaucerer]

It seems to me more analogous to a certificate, since there's nothing like a signature embedded in the image itself that only one person has. Anyone can have the thing itself (an identical digital copy), but only one person has the certificate provided by the original creator.