Unresolvable Identifier

arXiv:2605.20701 · detector doi_compliance · cross_source · 2026-05-21 04:14:09.108262+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1016/j.jsurg.2021.02.024' 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

Grace L. Paley, Rebecca Grove, T. C. Sekhar, and et al. 2021. Crowdsourced Assessment of Surgical Skill Proficiency in Cataract Surgery.Journal of Surgical Education78, 4 (2021), 1077–1088. https://doi.org/10.1016/j.jsurg.2021.02.024

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1016/j.jsurg.2021.02.024",
  "raw_excerpt": "Grace L. Paley, Rebecca Grove, T. C. Sekhar, and et al. 2021. Crowdsourced Assessment of Surgical Skill Proficiency in Cataract Surgery.Journal of Surgical Education78, 4 (2021), 1077\u20131088. https://doi.org/10.1016/j.jsurg.2021.02.024",
  "ref_index": 40,
  "verdict_class": "cross_source"
}