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Printer tracking dots (en.wikipedia.org)

submitted 2 weeks ago by [email protected] to c/wikipedia

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[–] [email protected] 12 points 2 weeks ago (1 children)

I thought they were unique per printer not just type. More akin to a serial number instead of a model number.

[–] [email protected] 4 points 2 weeks ago

That is my understanding. And I assume the dot patterns are made by printers worldwide. The article mentions Dutch law enforcement using them, and German researchers studying them.