

The more apt word is steganography, rather than watermark. Basically subtly adjust the weights of the model so that some subtle patterns appear. Think of how AI text prefers certain words and phrases that ordinary humans don’t use as often, like “delve,” but presumably much more subtle.
And no, as Anthropic has already said, this watermark may not survive editing/formatting.
Claude Now Watermarks Your Text | Vanja Petreski - https://vanja.io/claude-invisible-watermark/





100k/year in San Francisco is definitely low income.
Official government figures using an exemplary family of four (two adults two children) already classified a household income of $117,400 as low income back in 2018. By 2025, that threshold has risen to $159,000.
San Francisco: Where a six-figure salary is ‘low income’ - https://www.bbc.com/news/world-us-canada-44725026
Places Where a Six-Figure Salary is Considered ‘Low Income’ - https://internewscast.com/news/places-where-a-six-figure-salary-is-considered-low-income/