P4X-131 is the planet Jonas named as the origin of the various gold chalices and jewels cluttering his office when he brought Tanis Reynard there. It is very likely these artifacts came from a planet, maybe even P4X-131. Jonas had set up the entire scenario as a test and a trap with General Hammond's permission. When Tanis memorized the gate address for P4X-131 displayed on Jonas's computer monitor--the planet address was actually Earth's.
--Aurora 20:07, 25 June 2006 (PDT)