# clm_B3C27AECAA2F

subject: Substack (/record/substack.md)  
predicate: legal_form  
value: corporation  
valid_from: 2017-11-29  
valid_to: null  
confidence: 0.60  
status: unverified  
superseded_by: null  
first_seen: 2026-10-27  
last_updated: 2026-10-27  

## Sources

- https://www.wikidata.org/wiki/Q63435709 (secondary, Wikidata)
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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.