90% of NFTs probably are just ownership certificates of JPGs so if that is what you want to "view" then the answer probably is "a JPG".
Other NFTs though might be some sort of online game char, access tokens to a live feed or just symbols of on-chaining offchain consensus. In those cases the answer isn't that straight forward. But generally I'd remark that an NFT in itself only has utility as long as you have access to its underlying chain, so if you cannot take the interaction with the chain with you its not going to be very useful. OTOH, if your sole purpose is looking at pretty pictures then one will probably best just compile JPGs to a folder. But that doesn't mean that one owns those pictures or that there are NFTs involved.
It’s a continued fallacy that a physical thing may be secured by a crypto transaction (entry to a DAG).
Now, immediate identity and exchange of contract value, such as on Lightning, may be useful for compute resources, but only in the moment of inference.
Crypto was built to service AI, and more specifically, GAI. This is crypto’s “killer” use case. Everything else done with it is a sideshow.
Ownership does not imply security of the underlying object, digital or physical. Point in case, I owned my car when it was torched by anti globalism riots. Same principle applies to NFTs. Actually the real revolution of NFTs as "JPG ownership certs" is that they democratize art in that everybody can look at the linked JPG in full resolution but only one wallet can own that NFT.
Wow. Retconning history has reached new highs. I mean, it's easy to do it, because crypto origins are in such a distant past of * checks notes * only the past decade.
"Hey guys, I own this valuable piece of `something`. You have to trust me, as it's 50 light years away, and all I have is a pointer to an address on a chain that is also 50 light years away"
1. You and "your guys" have low delay comms to home which means you have network sync and so everything is dandy
2. You and your guys have delayed comms so everything relating to state back on earth is time delayed (ie: you live in the past when it comes to things related to earth) in this case it only makes sense to talk in the context of that past, for which you actually again happen to have chain sync so everything is dandy.
So there's literally no point. Because that valuable thing is needed now, not X years in the future when the sync happens.
The whole chain thing literally relies on fast internet available everywhere everytime