Unresolvable Identifier

arXiv:2605.05086 · detector doi_compliance · cross_source · 2026-05-19 13:50:33.905425+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/s12532-009-0017-6' 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

Fischetti, M., Salvagnin, D.: Feasibility Pump 2.0. Mathematical Programming Computation1(2-3), 201–222 (2009). https://doi.org/10.1007/s12532-009-0017-6

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/s12532-009-0017-6",
  "raw_excerpt": "Fischetti, M., Salvagnin, D.: Feasibility Pump 2.0. Mathematical Programming Computation1(2-3), 201\u2013222 (2009). https://doi.org/10.1007/s12532-009-0017-6",
  "ref_index": 20,
  "verdict_class": "cross_source"
}