{"date":"2004-02-04","became_true":[{"id":"clm_16085D72EA91","entity":"facebook","predicate":"founded","value":"2004-02-04","valid_from":"2004-02-04","valid_to":null,"published":null,"recorded":"2026-10-27","status":"unverified","assertable":false,"why_not":"unverified"},{"id":"clm_A46448346460","entity":"meta","predicate":"ceo","value":"Mark Zuckerberg","valid_from":"2004-02-04","valid_to":null,"published":null,"recorded":"2026-10-27","status":"unverified","assertable":false,"why_not":"unverified"}],"stopped_being_true":[],"recorded":[],"complete":true,"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{"unverified":"Unverified: one source that is not primary, or a primary source below confidence 0.7. Asserted once a primary source or a second independent domain confirms it."},"checked_by":{}}}