Unresolvable Identifier

arXiv:2605.15866 · detector doi_compliance · cross_source · 2026-05-19 19:12:35.995304+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.3389/fncom.2015.00099/full' 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

P. U. Diehl and M. Cook, “Unsupervised learning of digit recognition using spike-timing-dependent plasticity,” vol. 9. [Online]. Avail- able: https://www.frontiersin.org/journals/computational-neuroscience/ articles/10.3389/fncom.2015.00099/full

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.3389/fncom.2015.00099/full",
  "raw_excerpt": "P. U. Diehl and M. Cook, \u201cUnsupervised learning of digit recognition using spike-timing-dependent plasticity,\u201d vol. 9. [Online]. Avail- able: https://www.frontiersin.org/journals/computational-neuroscience/ articles/10.3389/fncom.2015.00099/full",
  "ref_index": 29,
  "verdict_class": "cross_source"
}