No, an actual search index, offerring word-to-URL mappings, along with metadata: creation and revision dates, authors, titles, file and/or MIME types, URLs within the text, other attributes, etc, from which a search interface could query.

Page-ranking would remain an issue, likely outside this scope.

I'd like to see some sort of cache-and-forward structure.

And you'd be relying on good-faith actors, which means heavily penalising bad actors.