# clm_F086B65BC700

subject: Codex (/record/openai-codex.md)  
predicate: customer  
value: Chi-kwan Chan  
valid_from: 2026-06-11  
valid_to: null  
published: 2026-06-11  
recorded: 2026-10-31  
confidence: 0.50  
status: unverified  
assertable: false (unverified: Unverified: one source that is not primary, or a primary source below confidence 0.7. Asserted once a primary source or a second independent domain confirms it.)  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date (its publisher's feed entry for the page)  

> Discover how astrophysicist Chi-kwan Chan uses Codex to build black hole simulations, helping scientists study extreme physics and test Einstein’s theory of general relativity

What https://openai.com/index/using-codex-to-simulate-black-holes says, word for word.

## Sources

- https://openai.com/index/using-codex-to-simulate-black-holes (secondary, OpenAI, published 2026-06-11)

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