Unresolvable Identifier

arXiv:2605.19364 · detector doi_compliance · cross_source · 2026-05-20 02:48:27.105942+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1214/13-aos1178.url:https://doi.org/10.1214/13-aos1178' 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

T. Tony Cai, Zongming Ma, and Yihong Wu. “Sparse PCA: optimal rates and adaptive estimation”. In:Ann. Statist.41.6 (2013), pp. 3074–3110.issn: 0090-5364,2168-8966. doi:10.1214/13-AOS1178.url:https://doi.org/10.1214/13-AOS1178

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1214/13-aos1178.url:https://doi.org/10.1214/13-aos1178",
  "raw_excerpt": "T. Tony Cai, Zongming Ma, and Yihong Wu. \u201cSparse PCA: optimal rates and adaptive estimation\u201d. In:Ann. Statist.41.6 (2013), pp. 3074\u20133110.issn: 0090-5364,2168-8966. doi:10.1214/13-AOS1178.url:https://doi.org/10.1214/13-AOS1178",
  "ref_index": 10,
  "verdict_class": "cross_source"
}