Unresolvable Identifier

arXiv:2605.02857 · detector doi_compliance · cross_source · 2026-05-19 15:55:02.529010+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1103/physrev.72' 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

Foley, H. M. Second-Order Magnetic Perturbations in Nuclear Quadrupole Spectra and the "Pseudo-Quadrupole" Effect in Diatomic Molecules.Physical Review72, 504–505 (1947). URLhttps://link.aps.org/doi/10.1103/PhysRev.72

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1103/physrev.72",
  "raw_excerpt": "Foley, H. M. Second-Order Magnetic Perturbations in Nuclear Quadrupole Spectra and the \"Pseudo-Quadrupole\" Effect in Diatomic Molecules.Physical Review72, 504\u2013505 (1947). URLhttps://link.aps.org/doi/10.1103/PhysRev.72",
  "ref_index": 41,
  "verdict_class": "cross_source"
}