Wouldn't it be simpler to make porn a regulated commodity that only the government, or those it authorises with permits, can produce? Like alcohol. But why stop there? Let's make sex a regulated activity that only the government can approve. This will solve the whole consent problem in the regulated space because every sexual interaction will be pre approved and in writing, with a no harm no foul escape clause if anyone changes their mind.

/S

But seriously, there's problems. if you want to ID people it might be easier to make every video begin with the actors holding up a placard that's like an anonymous crypto QR token clapper that somehow only government sensors can officially check, that's like a hash of their face id, and it's all in a big government bloom filter for registered porn stars. But then you couldn't stop people prefixing an unapproved video with their identities... Maybe the tech angle of not the right way to deal with this....