Unresolvable Identifier

arXiv:2605.03334 · detector doi_compliance · cross_source · 2026-05-19 15:28:21.357452+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1016/0196-6774(81' 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

doi:10.1016/0196-6774(81) 90019-5. 17 Leonidas J. Guibas and John Hershberger. Optimal shortest path queries in a simple polygon. Journal of Computer and System Sciences, 39(2):126–152,

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1016/0196-6774(81",
  "raw_excerpt": "doi:10.1016/0196-6774(81) 90019-5. 17 Leonidas J. Guibas and John Hershberger. Optimal shortest path queries in a simple polygon. Journal of Computer and System Sciences, 39(2):126\u2013152,",
  "ref_index": 9,
  "verdict_class": "cross_source"
}