{"id":"clm_2E7CF59A09E9","entity":"nist","predicate":"chair","value":"Walter Copan","value_json":{"item":"Q41781101","rank":"normal","check":{"by":"research, quote read on the page","on":"2026-10-29","url":"https://www.nist.gov/director/pao/directors-national-bureau-standards-1901-1988-and-national-institute-standards-and","quote":"Walter G. Copan | October 2017 – January 2021 | Selected as NIST director from the IP Engineering Group Corporation.","outcome":"checked"},"wikidata":"Q176691"},"valid_from":"2017-10-01","valid_to":"2021-01-01","published":null,"recorded":"2026-10-27","confidence":0.95,"status":"superseded","assertable":true,"superseded_by":"clm_F916A41DAFFB","supersedes":["clm_6373F0B79C0C"],"first_seen_at":"2026-10-27T21:45:25.97536+00:00","updated_at":"2026-10-29T23:39:21.780766+00:00","sources":[{"url":"https://www.nist.gov/director/pao/directors-national-bureau-standards-1901-1988-and-national-institute-standards-and","tier":"primary","publisher":null,"published_at":null},{"url":"https://www.wikidata.org/wiki/Q176691","tier":"secondary","publisher":"Wikidata","published_at":null}],"evidence":{"by":"page-read","on":"2026-10-29","quote":"Walter G. Copan | October 2017 – January 2021 | Selected as NIST director from the IP Engineering Group Corporation.","url":"https://www.nist.gov/director/pao/directors-national-bureau-standards-1901-1988-and-national-institute-standards-and"},"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":{},"checked_by":{"page-read":"its source page states the value and the date"}}}