Most collectors aren't claiming to own the media (because anybody can right-click save it, and because it is usually hosted on IPFS, the very purpose of which i

Most collectors aren't claiming to own the media (because anybody can right-click save it, and because it is usually hosted on IPFS, the very purpose of which is to allow the media to be copied & distributed across many nodes). But they may claim to own "the artwork," referring to the artist-signed artefact. Much like how a museum may choose to acquire & build provenance around a signed photographic print, despite the availability of unsigned prints that depict the same exact media (see Ansel Adams signed vs unsigned prints, for example).