Unresolvable Identifier

arXiv:2604.22672 · detector doi_compliance · cross_source · 2026-05-19 23:45:35.994489+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/s10107-004-0559-y/metrics' 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

A. Wächter, L. T. Biegler, On the implementation of an in terior- point ﬁlter line-search algorithm for large-scale nonline ar pro- gramming, Mathematical Programming 106 (1) (2006) 25–57. doi:10.1007/S10107-004-0559-Y/METRICS

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/s10107-004-0559-y/metrics",
  "raw_excerpt": "A. W\u00e4chter, L. T. Biegler, On the implementation of an in terior- point \ufb01lter line-search algorithm for large-scale nonline ar pro- gramming, Mathematical Programming 106 (1) (2006) 25\u201357. doi:10.1007/S10107-004-0559-Y/METRICS",
  "ref_index": 29,
  "verdict_class": "cross_source"
}