#1125: Probabilistic Reveal Tokens (for IP Protection)

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Opened Jul 30, 2025

Explainer

https://github.com/GoogleChrome/ip-protection/blob/main/prt_explainer.md

Where and by whom is the work is being done?

  • GitHub repo:
  • Primary contacts:
    • @sauski - Google
    • @philippp - Google
    • @etrouton - Google
  • Organization/project driving the design: Privacy Sandbox
  • This work is being funded by: Google
  • Incubation and standards groups that have discussed the design: None
  • Standards group(s) that you expect to discuss and/or adopt this work when it's ready: Unknown

Feedback so far

You should also know that...

This has already come across the desk of the TAG as part of the IP Protection review request (noting some PRT questions asked + answered as part of that).

We're back to give the TAG the opportunity to consider this work separately from the broader IP work (as encouraged by some conversation on the associated blink-dev thread).

The most "separated" view of this work is as an approach to enabling random sampling over an otherwise protected signal. In that vein, we're looking at continuing conversations in an IETF forum based on the IETF draft.

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Track conversations at https://tag-github-bot.w3.org/gh/w3ctag/design-reviews/1125

Discussions

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