In a very real sense this is exactly what LLM watermarking does. It "chooss the words carefully" in order to get text to "line up," but not with a visible margi

In a very real sense this is exactly what LLM watermarking does. It "chooss the words carefully" in order to get text to "line up," but not with a visible margin... instead with a verifiable word distribution that proves the author knew a secret key.