alt Hacker NewsI guess the SynthID-Image paper from Oct 2025[0] was an encoder-decoder for which they tested checking a flag or a 136 bit payload in 512x512 images and the watermark's robustness after various transformations.
Presumably the deployed version is meaningfully different.
This is very similar to audiowmark
https://github.com/swesterfeld/audiowmark
You can stuff per-item database unique IDs, user IDs, geohashes, and other nefarious things inside.
We need to protest this LOUDLY.
Our devices are being locked down, we're having attestation and trusted computing forced on us, the internet all over the world is undergoing age verification with full ID verification.
Just because this is on "ai images" today doesn't mean it won't be on all images - screenshots, your camera reel, etc. - in the fullness of time.
This is scary.
These are the tools of 1984. They've been boiling the water slowly, but in the last year things have really started to pick up pace. Please push back. Loudly.
Everyone at Google and OpenAI working on this: WHAT THE FUCK ARE YOU DOING. STOP.
We have laws and mechanisms to prevent revenge porn, CSAM, defamation, etc. They are robust and can be made even stronger. We do not need to sacrifice the security of our privacy and our speech to fight imagined harms when the real danger is turning into an authoritarian society.