Interestingly, this sounds kind of like one of the problems IPFS aims to solve. Files are identified by their content rather than where they're stored, since IPFS is distributed and copies of the file can be stored all over.
Discussion
My use case is more focused on content creators who want some control over their content distribution and logic/rules. Maybe it’s as simple as members get to see content 2 weeks before everyone else.
If it’s general public content, and no payment or access checks are required, for sure - hash content addressable over http/p2p/Nostr relays is fine. I like it.