Oh I see. No, no permit of any kind is required. You don't have to provide proof that the gun is yours or anything like that. The permit to purchase is just and only that.
Greenville isn't a bad area. I'm only about an hour from there, near Marine Corps Air Station, Cherry Point. FWIW I've also open carried in the commercial areas of Greenville a few times with no problems. Unfortunately the mall there is under new management, and they decided to put "no snub-nosed revolvers" signs on every door. Prior to that, I had even open carried in the mall w/o problems.