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Amazon should be doing this to ALL of their inventory, marking where particular item came from for the purpose of following up post fake discovery.

Instead Amazon gets to point finger and blame bad bad manufacturers not bothering to do Amazons job.

But this is only for a select few companies , isn't it?

... because it's impossible to just copy the serial code, too?

Maybe it's a use-once uuid-like code like things like gift cards use?