Right now, there is no seed verification outside of catching a Pokemon or an AR.
Catching a Pokemon advances the frame by 120 frames per second so, that will mess you up. 128 steps advances the IV frame by however many Pokemon are in your party. NPC's no longer advance the IV frame, but rather advance the PID of the Pokemon since the PID is no longer linked to the IV. There is also no method outside of the AR of keeping track of the PID's placement.
PID controls nature, shiny, whether sync/everstone works, parent passed down IV's, Female DW passing.
Also I made something else, my attempt at adding text;