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Printer tracking dots
(en.wikipedia.org)
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this post was submitted on 31 Oct 2024
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If you buy the same printer in different counties do the dots persist or change?
I thought they were unique per printer not just type. More akin to a serial number instead of a model number.
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.