Unresolvable Identifier

arXiv:2604.28004 · detector doi_compliance · cross_source · 2026-05-19 18:41:43.163011+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.22405/2226-8383-2023-24-2-81-140' 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

Galstyan, A.Kh.: Boundary stability in the Fermat–Steiner problem in hyperspaces over finite-dimensional normed spaces. Chebyshevskii sbornik, vol. 24, no. 2, pp. 81– 128 (2023). doi:10.22405/2226-8383-2023-24-2-81-140

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.22405/2226-8383-2023-24-2-81-140",
  "raw_excerpt": "Galstyan, A.Kh.: Boundary stability in the Fermat\u2013Steiner problem in hyperspaces over finite-dimensional normed spaces. Chebyshevskii sbornik, vol. 24, no. 2, pp. 81\u2013 128 (2023). doi:10.22405/2226-8383-2023-24-2-81-140",
  "ref_index": 14,
  "verdict_class": "cross_source"
}