How do you decode passcodes in GT4?
 

So you all know what I'm talking about, Go to a track in sim mode, go to the menu where you can check the rankings for that track. Move the arrow ontop of any lap time and press START. This orange box will pop up and show you a 32 digit code.

I know this is to prove lap times are real..for online gt4 leagues and such. Does anyone know how to decode it?

Is it possible for us to use the code to prove a friends lap time or is it only something sony/developers can do?