No comment on the substance of the post, but from what I can tell it is actually the complete opposite of the three laws (at least how they operated pre-robot series, in Asimov's short stories). Perhaps that is what you meant?

Regardless, in the early stories, robots could not lie to us. It was indelibly programmed into the positronic brain. They would destroy themselves if put in a position where the three laws were violated.

Anyways, if that were possible with current LLMs I would think the hallucination problem would have been trivially addressed: just program in that the LLM can't tell a lie.