Yeah. It only says you have to present a valid permit at the time of purchase, but I don't know if the permits are numbered and the FFL's will have to record that to go into OSP, or it's simply a visual verification. There's not anywhere on the 4473 requiring it, but who knows about the submission protocol(?)I'm not seeing a direct link between the Permit registry and the 4473, but,.......
All they have to do is cross reference the OSP to see anything recorded, cause we all know the OSP follows the law and destroys records after 5 years!
It's hardly as if they need it. Name, address, etc is going to match up in the permit registry. It would be kinda stoopid if OSP doesn't use the registry to confirm your permit is actually valid and hasn't been revoked for some reason, right?
While they're in there... badda bing! Update it with your new purchase info!