Unresolvable Identifier

arXiv:2605.06321 · detector doi_compliance · cross_source · 2026-05-19 12:48:38.389578+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1093/ptep/ptaa1142' 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

Mei, J., Bai, Y .-Z., Bao, J., et al. 2021, Progress of Theoretical and Experimental Physics, 2021, 05A107, doi:10.1093/ptep/ptaa1142, 7

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1093/ptep/ptaa1142",
  "raw_excerpt": "Mei, J., Bai, Y .-Z., Bao, J., et al. 2021, Progress of Theoretical and Experimental Physics, 2021, 05A107, doi:10.1093/ptep/ptaa1142, 7",
  "ref_index": 181,
  "verdict_class": "cross_source"
}