Unresolvable Identifier

arXiv:2605.17049 · detector doi_compliance · cross_source · 2026-05-20 15:42:29.605340+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1017/s1464793102006020' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

Almut Kelber, Misha Vorobyev, and Daniel Osorio. Animal colour vision – behavioural tests and physiological concepts.Biological Reviews, 78(1): 81–118, 2003. doi: 10.1017/S1464793102006020

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1017/s1464793102006020",
  "raw_excerpt": "Almut Kelber, Misha Vorobyev, and Daniel Osorio. Animal colour vision \u2013 behavioural tests and physiological concepts.Biological Reviews, 78(1): 81\u2013118, 2003. doi: 10.1017/S1464793102006020",
  "ref_index": 55,
  "verdict_class": "cross_source"
}