Unresolvable Identifier

arXiv:2605.18247 · detector doi_compliance · cross_source · 2026-05-20 10:22:36.695334+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1017/cbo978051162' 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

doi: 10.1017/CBO978051162 [Lit82] Robert G. Littlejohn. “Singular Poisson tensors”. In: Mathematical Methods in Hydrodynamics and Integrability in Dynamical Systems . Ed. by M. Tabor and Y. M. Treve. Vol

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1017/cbo978051162",
  "raw_excerpt": "doi: 10.1017/CBO978051162 [Lit82] Robert G. Littlejohn. \u201cSingular Poisson tensors\u201d. In: Mathematical Methods in Hydrodynamics and Integrability in Dynamical Systems . Ed. by M. Tabor and Y. M. Treve. Vol",
  "ref_index": 7,
  "verdict_class": "cross_source"
}