Check a DOI against its reference
Match identifier, title, authors, object type and version before reusing a bibliographic reference.
Follow the method ↓
The answer in 30 seconds
A plausible DOI can contain a copying error or accompany the wrong document. Verification compares the object it identifies with the document that actually supports your point.
Resolve the DOI through doi.org, compare title, authors, type and version, then read the publication. Metadata identifies a document; it does not replace methods, results or current publication status.
Examples to adapt
The two objects may have distinct identifiers. Cite the one supporting the evidence used.
A coherent title is insufficient. If the DOI opens another document, suspend the citation and return to the sources.
Read a DOI or an ORCID identifier
Distinguish a research object from a person identifier. This workshop prepares a link and checks the ORCID check digit. It contacts no registry and verifies neither object existence nor author identity.
Local processing, with no submission or automatic storage of the input. Opening the prepared link is a separate action contacting the registry and possibly the DOI destination.
Documentation consulted on 9 October 2026: DataCite — DOI Basics, ORCID — Identifier structure. Examples come from this documentation; they are not publications or profiles created by the portal.
Follow the method
- 1Retain the received reference
Keep the DOI, title and origin as supplied. If correcting a copied identifier, record both versions.
- 2Check the copy before opening
The reader below recognises DOI forms and checks ORCID check digits without contacting registries. If input is unsupported, return to the original reference. A format result does not replace record comparison.
- 3Resolve the identifier
Use the corresponding doi.org link. A DOI may identify an article, dataset or another object; do not assume it supplies the expected full text.
- 4Compare metadata
Match title, authors, year and type. Crossref exposes deposited metadata and registration-agency lookup; absence from one registry does not establish that a DOI does not exist.
- 5Read the correct version
Check the document, possible corrections and cited version. Retain final URL and consultation date with reading notes.
A closer look
A working link is only the beginning
Fictional scenario: a bibliography lists a title, two authors, a year and a DOI. The DOI opens a page; you still need to establish that it matches the reference.
| Feature | Check | If it differs |
|---|---|---|
| Title and authors | Compare the citation with metadata and the publisher’s page | Look for a copying error or a different document |
| Year and version | Distinguish preprint, publication and correction | State which version you actually read |
| Document content | Find the passage supporting the claim | Narrow or remove an unsupported claim |
Metadata search helps identify a document. It does not automatically validate its conclusions or how another page uses it.
Does finding a reference confirm an AI answer?
Only after examining the relevant passage. A document can exist and address the topic without supporting the number or conclusion attributed to it.
Supporting documentation : Crossref — Metadata Search · Consulted on 2026-10-15. Examples and calculations are illustrative.
A checklist to keep
Use these checks to record your observations. They are a reading aid, not an automatic assessment.
| Check | What to examine | Action |
|---|---|---|
| DOI | Supplied identifier and destination | Retain |
| Match | Title and authors | Compare |
| Object | Article, data or another document | Identify |
| Version | Publication and corrections | Check |
| Evidence | Passage actually read | Document |
Read the checklist directly in the table.
What to check
A DOI prefix is not a quality score.
The destination page can change while the identifier remains the same.
Separate publication, metadata-deposit and consultation dates.
Common questions
Does a DOI guarantee peer review?
No. Identify document type and publication; a persistent identifier is not scientific certification.
What if details disagree?
Retain both observations, consult the publisher or repository and disclose the unresolved conflict in your work.
Does a “v2” suffix necessarily identify a version?
No. The suffix alone does not implement versioning. Read the record’s information and relationships; for Zenodo, distinguish a version DOI from a concept DOI.
Sources and documentation
- DataCite — DOI Basics ↗
- Crossref — REST API ↗
- DOI Foundation — Handbook ↗
- ORCID — Identifier structure ↗
- Zenodo — Citing a record ↗
- Crossref — Relationships ↗
Documentation consulted on . Examples are illustrative; interfaces and results may change.
Apply this method to a wider task
Read the direction of a publication relationship
Crossref relationships have a direction: described and linked objects play different roles. Read the relationship before replacing a reference.
- Identify the described object
- Read the relationship
- Compare the cited passage
| Situation | What changes | Useful check |
|---|---|---|
| isPreprintOf / hasPreprint | Links a preprint and associated publication in opposite directions. | Check which document was actually read. |
| isVersionOf / hasVersion | Declares a version relationship. | Compare tables and conclusions; the link does not mean identical text. |
| isReviewOf / hasReview | Links a review and its subject. | Read the review and its scope before concluding. |
A working DOI identifies a resource without awarding a quality label. A missing metadata relationship does not establish that works are unrelated. Retain the title, version and passage used.
Documentation : Crossref — Relationships ↗ · · Read the reference record →
Reference record for this resource
Identify the publisher, official destination and practical checks before using the service.
Read the Crossref record →