3 ms·

Map makers have done this for a very long time: https://en.wikipedia.org/wiki/Trap_street https://en.wikipedia.org/wiki/Trap_street

• fer 1y ago
  Also related https://en.wikipedia.org/wiki/Canary_trap https://en.wikipedia.org/wiki/Canary_trap
  • thewanderer1983 1y ago
    Similiar tech was used for screeners to try and track leakers. https://en.m.wikipedia.org/wiki/Screener_(promotional) https://en.m.wikipedia.org/wiki/Screener_(promotional) Printer Tracking dots is another example. https://en.m.wikipedia.org/wiki/Printer_tracking_dots https://en.m.wikipedia.org/wiki/Printer_tracking_dots For those interested in modern solutions. Look at watermark researchpapers.r