# PythonWhiteFin revert cobra blackfin patches added in 3.60 Cobra Blakfin patch is as follows: ``` time = sceKernelGetSystemTimeWide() // do the gc authentication time2 = sceKernelGetSystemTimeWide() if((time2 - time) > 50000) goto fail; ``` or tl;dr if gc authentication takes longer than 50000 microseconds, then the authentication fails.