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A comment on Encoding your WiFi access point password into a QR code. Parent comment

Re:Encoding your WiFi access point password into a QR code by tzs on Tuesday December 31, 2019 @01:51AM (#21919422)
OP was assuming the receipt would list the product UPC code rather than product name. A UPC code is 12 digits, which can be encoded in 40 bits.
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