How to Check If a Research Paper Was Retracted: A 6-Step Citation Safety Check

A research paper can be real, correctly cited, and still be unsafe to rely on because its status changed after publication.

Corrections, expressions of concern, retractions, and later updates can all change how a paper should be interpreted. Crossref’s Crossmark service is specifically designed to help readers see the current status of content, including corrections, retractions, and updates.

Before you cite an important paper, check not only whether it exists, but whether it is still current.

1. Identify the exact paper

Start with the most stable identifiers you have:

title,
authors,
journal or publisher,
publication year,
DOI,
PubMed ID when relevant.

If the paper has a DOI, resolve it through https://doi.org/ and confirm that the landing page matches the citation you intend to use.

A DOI resolving successfully confirms the identifier points to an object. It does not, by itself, prove that the paper has never been corrected or retracted.

2. Check the publisher page and Crossmark status

Open the publisher’s current landing page, not just an old PDF saved on your device.

If the page or PDF includes a Crossmark button, use it. Crossref says Crossmark gives readers access to the current status of a content item, including corrections, retractions, or other updates reported by the publisher.

Look for labels or notices such as:

correction or erratum,
expression of concern,
retraction,
withdrawal,
updated or replaced version.

Do not assume that an older downloaded PDF reflects the current record.

3. Check Crossref and Retraction Watch data

Crossref includes publisher-supplied updates and Retraction Watch data in its production services.

Its Retraction Watch documentation explains that retractions are available through the Crossref REST API and as a downloadable dataset. Other update types, including some corrections and expressions of concern, may also be present, although those are not as comprehensive as retractions.

For an important paper, search the DOI or title in Crossref-related status tools and check whether the record shows a later update.

A clean result is useful evidence, but absence from one database is not absolute proof that no issue exists. Continue to the publisher or field-specific database when the stakes are high.

4. For biomedical papers, check PubMed/NLM links

For biomedical literature, PubMed and National Library of Medicine records can provide another status signal.

NLM’s citation guidance distinguishes between a retracted article and a separate retraction notice, and links the two in citation records when that relationship is known.

Check the PubMed record for terms such as:

Retracted Publication,
Retraction in,
Retraction of,
Erratum or correction links.

This additional check is especially useful when the paper affects a health or medical claim.

5. Read the correction or retraction notice

Do not stop at the label.

Open the correction, expression of concern, or retraction notice and determine what changed. A correction to an author name is different from a correction to data or conclusions. A retraction can also have different reasons and scopes.

Ask:

What exactly was changed or withdrawn?
Does the update affect the claim you planned to cite?
Is there a corrected or replacement version?
Does the publisher still present the original as part of the scholarly record?

For evidence-based writing, the decisive question is not merely “Was there an update?” but “Does the current status still support the claim I want to make?”

6. Record the status and your citation decision

Use a status that records what you actually found:

CURRENT — no material update found in the sources checked.
CORRECTED — a correction exists; use the corrected record and verify whether your claim is affected.
EXPRESSION OF CONCERN — a formal concern exists; treat the paper as higher risk and avoid strong reliance until the issue is resolved.
RETRACTED — do not use the paper as current evidentiary support unless your purpose is specifically to discuss the retraction or historical record.
UNRESOLVED — status information is conflicting or incomplete.

Save the date you checked the paper and the sources you checked. Publication status can change after your first review.

A compact pre-citation status checklist

Before citing an important research paper, ask:

Identity: Do the title, authors, journal, and DOI match?
Publisher: Does the current publisher page show any notice?
Crossmark: Is there a current-status record?
Crossref: Is there a correction, retraction, or Retraction Watch update?
Field database: Does PubMed or another authoritative database show a linked notice?
Decision: Does the current status still support the claim you want to make?

The core rule is simple: a paper’s existence is not the same as its current reliability status.

Sources

Fact-check date: 2026-09-27.