I think the difference I’m suggesting is being able to publish without permanently maintaining anything. With RSS, someone can actively archive your files and update and publish a new RSS, yes
With what I’m saying, the notes remain the source of truth, so an archivist would just need to host the files on a discoverable CDN, not republish a feed.
The original author could add more CDNs to their kind zero, and the original notes still work. No replacing the notes, no replacing the files, just propagating verifiable copies of them