{"id":"clm_A7F78BFE8AE0","entity":"substack","predicate":"headquarters","value":"San Francisco","value_json":{"note":"I couldn't find a Substack-owned page or filing that I could read. The best readable page is this third-party one, which says Substack is headquartered in San Francisco, CA.","check":{"on":"2026-11-02","url":"https://multiples.vc/private-comps/substack","pages":1,"quote":"Where is Substack headquartered? Substack is headquartered in San Francisco, CA, United States.","outcome":"checked"},"undated":true,"verdict":"found","verified":"2026-11-01","missing_basic":true},"valid_from":null,"undated":true,"valid_to":null,"published":null,"recorded":"2026-11-01","citation":{"plain":"AsOf. \"Substack headquarters: San Francisco\", undated. Claim clm_A7F78BFE8AE0, https://asof.is/claim/clm_A7F78BFE8AE0, accessed 2026-11-09. Source: https://multiples.vc/private-comps/substack.","url":"https://asof.is/claim/clm_A7F78BFE8AE0","accessed":"2026-11-09"},"confidence":0.6,"status":"unverified","assertable":false,"why_not":"unverified","superseded_by":null,"supersedes":[],"first_seen_at":"2026-11-01T22:53:42.083835+00:00","updated_at":"2026-11-02T01:37:17.230247+00:00","sources":[{"url":"https://multiples.vc/private-comps/substack","tier":"secondary","publisher":"multiples.vc","published_at":null}],"evidence":{"by":"page-read","on":"2026-11-02","quote":"Where is Substack headquartered? Substack is headquartered in San Francisco, CA, United States.","url":"https://multiples.vc/private-comps/substack"},"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.","citation":"citation: how to cite the row (plain: one sentence with the value, its as-of date, the claim id and URL, the day answered and the primary source; url: the claim page; accessed: the day answered). APA and BibTeX forms are on the claim page.","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":{"page-read":"its source page states the value and the date"}}}