pith. sign in

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 '10.1214/17-aos1625.url:https://doi.org/10.1214/17-aos1625' 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

Amelia Perry et al. “Optimality and sub-optimality of PCA I: Spiked random matrix models”. In:Ann. Statist.46.5 (2018), pp. 2416–2451.issn: 0090-5364,2168-8966.doi: 10.1214/17-AOS1625.url:https://doi.org/10.1214/17-AOS1625

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1214/17-aos1625.url:https://doi.org/10.1214/17-aos1625",
  "raw_excerpt": "Amelia Perry et al. \u201cOptimality and sub-optimality of PCA I: Spiked random matrix models\u201d. In:Ann. Statist.46.5 (2018), pp. 2416\u20132451.issn: 0090-5364,2168-8966.doi: 10.1214/17-AOS1625.url:https://doi.org/10.1214/17-AOS1625",
  "ref_index": 29,
  "verdict_class": "cross_source"
}