# clm_797C5D251EED

subject: Quizlet (/record/quizlet.md)  
predicate: headquarters  
value: San Francisco  
valid_from: undated  
valid_to: null  
confidence: 0.70  
status: unverified  
superseded_by: null  
first_seen: 2026-10-27  
last_updated: 2026-10-28  

## Sources

- https://www.wikidata.org/wiki/Q7272716 (secondary, Wikidata)
- http://www.crunchbase.com/organization/quizlet (secondary)
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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.