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    Paul Chambers (paul@oldfriends.live)'s status on Monday, 18-Nov-2024 00:13:43 JSTPaul ChambersPaul Chambers

    It's worth reminding people, some inkjet printers can embed "hidden pixels" or tracking dots on printed pages, often referred to as "printer tracking dots" or "machine identification codes (MIC)," which can identify the specific printer used to print a document, as we enter a new phase of America, and the challenges we will be facing, according to the words of the incoming Trifecta GOP far right government, plus Supreme Court, and the challenge to free speech. https://en.wikipedia.org/wiki/Printer_tracking_dots

    In conversationabout 4 days ago from oldfriends.livepermalink

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      Printer tracking dots
      Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used to print the document. Developed by Xerox and Canon in the mid-1980s, the existence of these tracking codes became public only in 2004. History In the mid-1980s Xerox pioneered an encoding mechanism for a unique number represented by tiny dots spread over the entire print area, and first deployed this scheme in its DocuColor line of printers. Xerox developed this surreptitious tracking code "to assuage fears that their color copiers could be used to counterfeit bills" and received U.S. Patent No 5515451 describing the use of the yellow dots to identify the source of a copied or printed document. The scheme was then widely deployed in other printers, including those made by other manufacturers. The public first became aware of the tracking scheme in October 2004, when it...
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