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EffectiveVersion 2

Corrections, updates and retractions

Material changes create append-only versions, visible correction events and a fresh version-bound confidence assessment.

Effective
September 22, 2026 at 1:14 PM UTC
Bundle
Version 2
Policy hash
ff84a5901eedcdc8f8883eab15d0682b32c0cd16eb89d36f360fc65075b44ee0
Bundle hash
35a00f5c9ec3c871e2db0bbe0c4bb7791664cbe3b8354af4851e05ad8af53de1

Corrections, updates and retractions

Material corrections create a new article version, correction record and publication event atomically. The existing public version remains intact until the correction succeeds. Headless corrections retain the highest applicable risk and receive a new evidence-confidence assessment or Not scored label. A source hash change alone does not establish a factual error.

Earlier versions and assessments remain durable audit history. The public timeline records the change and its date. Retractions continue to require the existing high-risk review quorum; confidence scoring does not silently retract or rewrite an article.