# clm_597AF068CC02

subject: Mythos 5 (/record/mythos-5.md)  
predicate: policy_changed  
value: Access restricted for foreign nationals  
valid_from: 2026-06-12  
valid_to: null  
confidence: 0.50  
status: valid  
superseded_by: null  
first_seen: 2026-10-27  
last_updated: 2026-10-28  

## Sources

- https://www.anthropic.com/news/fable-mythos-access (primary, Anthropic)
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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.