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/s0020-0190(97' 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/S0020-0190(97) 00211-1. 12 Danny Z. Chen and Haitao Wang. Visibility and ray shooting queries in polygonal domains. Computational Geometry: Theory and Applications, 48:31–41,

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1016/s0020-0190(97",
  "raw_excerpt": "doi:10.1016/S0020-0190(97) 00211-1. 12 Danny Z. Chen and Haitao Wang. Visibility and ray shooting queries in polygonal domains. Computational Geometry: Theory and Applications, 48:31\u201341,",
  "ref_index": 6,
  "verdict_class": "cross_source"
}