# Substack timeline

entity: /record/substack.md  
id: ent_substack  


## undated

- undated | website | https://substack.com/ | unverified | [clm_41D9CDDFD7CB](/claim/clm_41D9CDDFD7CB.md)

## 2017

- 2017-06-20 | x_username | SubstackInc | unverified | [clm_599505331ABE](/claim/clm_599505331ABE.md)
- 2017-11-29 | legal_form | corporation | unverified | [clm_B3C27AECAA2F](/claim/clm_B3C27AECAA2F.md)
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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.