I'm pretty sure they can analyze those parts to find where they originated from, their date of manufacturing, then draw a line from the fab to the buyer. Digita

I'm pretty sure they can analyze those parts to find where they originated from, their date of manufacturing, then draw a line from the fab to the buyer. Digital parts can have internal serial numbers readable with reserved instructions, as for analog ones I wouldn't be surprised if there weren't very subtle differences in their manufacturing (material composition, tolerances?) that could be used to identify at least roughly where they originated from and a list of potential buyers.