That is wrong (at least according to The Guardian https://www.theguardian.com/us-news/2026/oct/07/trump-eu-disinformation-conference 
Must be a top comment or part of the post - 99 % of people don’t read so far based on the other comments here
Based on “controlling” of a sampling set for a token prediction . Nice summary is here https://sebastianraschka.com/blog/2026/claude-text-watermarking.html eg