The entire watermarking scheme is based on replacing a random number generator with a seeded random number generator. This cannot change the "voice" of the LLM

The entire watermarking scheme is based on replacing a random number generator with a seeded random number generator. This cannot change the "voice" of the LLM. It was already letting a random number generator choose which adjectives to use. Now that random number generator encodes a tiny signal. But fundamentally the way it writes has not changed. It's not making it choose different words. It's a minor change to how it chooses between multiple nearly identical words, where in the current case it literally flips a coin.