Anthropic Long-Term Benefit Trust — key-event: Paul Christiano appointed founding trustee

NoteThe source directly confirms that Paul Christiano was appointed as a founding trustee of the Anthropic Long-Term Benefit Trust as of September 2023. The source explicitly lists him among the five initial Trustees with the exact title/description provided in the claim's additional context ('Founder of the Alignment Research Center'). The temporal marker 'as of 2023-09' matches the announcement date of September 19, 2023. The footnote indicating his later departure in April 2024 does not contradict the claim about his appointment status as of 2023-09.