In the long run, everything is ephemeral. A digital archive could potentially last longer than a book or a vinyl, as long as the archivist takes care to maintain the integrity of the data.. Except in a sense that isn’t true at all. In the distant future the archived material* is actually a copy of a copy ad nauseam, but perhaps a more perfect preservation of material than the Mona Lisa today.

*”material” being the relevant information.