Unresolvable Identifier

arXiv:2605.17689 · detector doi_compliance · cross_source · 2026-05-19 22:11:05.062399+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.3390/1010000' 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

Bergmeir, C.; Hyndman, R.J.; Koo, B. A Note on the Validity of Cross-Validation for Evaluating Autoregressive Time Series Prediction.Comput. Stat. Data Anal.2018,120, 70–83. https://doi.org/10.3390/1010000

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.3390/1010000",
  "raw_excerpt": "Bergmeir, C.; Hyndman, R.J.; Koo, B. A Note on the Validity of Cross-Validation for Evaluating Autoregressive Time Series Prediction.Comput. Stat. Data Anal.2018,120, 70\u201383. https://doi.org/10.3390/1010000",
  "ref_index": 19,
  "verdict_class": "cross_source"
}