[sebzim4500]

>OpenAI almost certainly has the hashes of what it spits out too, so they'll be able to sort the wheat from the chaff for a while yet.

Normal hashes are extremely fragile, so they'd have to use something more sophisticated. Scott Aaronson said in a podcast a few months ago that OpenAI has implemented such a system but at the time they had not decided to start using it.

The purpose being discussed at the time was to provide a tool for educators to detect cheating, but presumably it could also be used for filtering future datasets.