Policy
Corrections
We correct mistakes in public and keep the old version available. Every article has its own corrections log; this page collects them.
Kinds of change
- Typographic
- Spelling, formatting, a broken link. Fixed quietly; the version history notes it.
- Clarification
- The claim was right but easy to misread. We reword it and mark the change.
- Correction
- A claim, number or figure was wrong. A notice sits at the top of the article until the next major version.
- Retraction
- The main finding does not hold. The article stays online, marked as retracted, with the reason.
Corrections log
No corrections have been published yet. Each correction is listed here with the article, the version, the kind of change, what changed and the date.
Report a mistake
If you think something is wrong, tell us through Contact and name the article, the version and the statement. We acknowledge the report, check it against the evidence, and publish the outcome in the log, including when we decide no change is needed.