Unresolvable Identifier

arXiv:2604.25071 · detector doi_compliance · cross_source · 2026-05-19 21:31:58.118783+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1137/s0097539793244' 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

Håstad, J., Impagliazzo, R., Levin, L. A. & Luby, M. A pseudorandom generator from any one-way function (1999). URL https://doi.org/10.1137/S0097539793244

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1137/s0097539793244",
  "raw_excerpt": "H\u00e5stad, J., Impagliazzo, R., Levin, L. A. & Luby, M. A pseudorandom generator from any one-way function (1999). URL https://doi.org/10.1137/S0097539793244",
  "ref_index": 38,
  "verdict_class": "cross_source"
}