{"entity":"david-duffield","id":"ent_david-duffield","name":"David Duffield","wikidata":"Q5233095","page":"https://asof.is/record/david-duffield","summary":"David Duffield is an American engineer and entrepreneur. On the record, David Duffield is a founder of Workday.","title":"David Duffield: founder of Workday","key_facts":[{"label":"Founder","value":"Workday","claim":"clm_A0EC5ED9DCEA"}],"faq":[{"question":"What roles does David Duffield hold?","answer":"Founder of Workday, as the AsOf record states with its sources."},{"question":"What is David Duffield's role at Workday?","answer":"Founder."}],"as_of":null,"known_by":null,"since":null,"fact_pages":[{"predicate":"founder_of","page":"https://asof.is/record/david-duffield/founder_of","md":"https://asof.is/record/david-duffield/founder_of.md","json":"https://asof.is/v1/entities/david-duffield/founder_of"}],"coverage":{"entity":"david-duffield","name":"David Duffield","kind":"person","sources":[{"source":"wikidata","item":"Q5233095","covers":"dated statements whose reference URL is the source: leadership, ownership, names, founding, headquarters; never financial figures"},{"source":"people","covers":"public roles mirrored from the organizations' claims (ceo_of, chair_of, founder_of...), with their dates and sources; nothing personal"}],"holds":{"claims":2,"open":1,"retracted":0,"first":"2005-01-01","predicates":{"ceo_of":{"claims":1,"open":0,"kind":"fact"},"founder_of":{"claims":1,"open":1,"kind":"fact"}}},"freshness":[{"origin":"people","label":"roles mirrored from the organizations' claims (people.py)","claims":2,"last_added":"2026-11-08","last_checked":"2026-11-01","last_verified":null}],"gaps":[],"group":[],"group_complete":true,"rule":"sources: what the pipeline reads for this entity, from its config (pipeline/entities.json, feeds.json, sec_companies.json, huggingface_authors.json). holds: its public claims by predicate; open is held today; kind fact is what entity_state answers by default, event is for timeline. freshness, per ingest (origin): last_added is the day it last put a new claim here (first_seen_at), last_checked the day one was last checked against its source (checked_on), last_verified the day reverify.py last confirmed one against Wikidata (value_json.verified_at). Only checked claims are public, so a fact missing here is unknown, not absent. gaps: what the record does not cover for this entity, so an empty answer is not read as news."},"claims":[{"id":"clm_2EEAFDA6C10A","predicate":"founder_of","value":"Workday","valid_from":null,"undated":true,"valid_to":null,"published":"2013-07-01","recorded":"2026-11-08","citation":{"plain":"AsOf. \"David Duffield founder of: Workday\", undated. Claim clm_2EEAFDA6C10A, https://asof.is/claim/clm_2EEAFDA6C10A, accessed 2026-11-08. Source: https://sbnonline.com/article/67771/.","url":"https://asof.is/claim/clm_2EEAFDA6C10A","accessed":"2026-11-08"},"confidence":0.8,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://sbnonline.com/article/67771/","tier":"secondary","publisher":"sbnonline.com","published_at":"2013-07-01T00:00:00+00:00"},{"url":"https://www.wikidata.org/wiki/Q8034666","tier":"secondary","publisher":"Wikidata","published_at":null},{"url":"https://fortune.com/2025/04/01/workday-fortune-500-top-5-business-lessons/","tier":"secondary","publisher":"fortune.com","published_at":"2025-04-01T00:00:00+00:00"}],"evidence":{"by":"mirror","on":"2026-11-01"}},{"id":"clm_03260C1C8E5A","predicate":"ceo_of","value":"Workday","valid_from":"2005-01-01","valid_to":"2014-05-13","published":"2014-05-15","recorded":"2026-11-08","citation":{"plain":"AsOf. \"David Duffield ceo of: Workday\", as of 2005-01-01 (until 2014-05-13). Claim clm_03260C1C8E5A, https://asof.is/claim/clm_03260C1C8E5A, accessed 2026-11-08. Source: https://www.sec.gov/Archives/edgar/data/1327811/000119312514199664/d727055d8k.htm.","url":"https://asof.is/claim/clm_03260C1C8E5A","accessed":"2026-11-08"},"confidence":0.85,"status":"superseded","assertable":true,"superseded_by":null,"sources":[{"url":"https://www.wikidata.org/wiki/Q8034666","tier":"secondary","publisher":"Wikidata","published_at":null},{"url":"https://businesschief.com/news/why-is-workday-co-founder-returning-as-ceo-again","tier":"secondary","publisher":null,"published_at":"2026-02-10T00:00:00+00:00"},{"url":"https://www.sec.gov/Archives/edgar/data/1327811/000119312514199664/d727055d8k.htm","tier":"primary","publisher":"Workday (SEC DEF 14A)","published_at":"2014-05-15T00:00:00+00:00"},{"url":"https://www.sec.gov/Archives/edgar/data/1327811/000119312518138883/d510652ddef14a.htm","tier":"primary","publisher":"Workday (SEC DEF 14A)","published_at":"2018-04-27T00:00:00+00:00"}],"evidence":{"by":"mirror","on":"2026-10-29"}}],"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":{},"checked_by":{"mirror":"mirrors a checked claim on the organization's record"}}}