Unresolvable Identifier

arXiv:2604.20786 · detector doi_compliance · cross_source · 2026-05-20 01:34:50.668835+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/bf01692067doi:10.1007/bf01692067' 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

Shai Simonson. A variation of the min cut linear arrangement problem.Mathematical Systems Theory, 20:235–252, 1987.doi:10.1007/BF01692067doi:10.1007/BF01692067

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/bf01692067doi:10.1007/bf01692067",
  "raw_excerpt": "Shai Simonson. A variation of the min cut linear arrangement problem.Mathematical Systems Theory, 20:235\u2013252, 1987.doi:10.1007/BF01692067doi:10.1007/BF01692067",
  "ref_index": 12,
  "verdict_class": "cross_source"
}