Unresolvable Identifier

arXiv:2605.18217 · detector doi_compliance · cross_source · 2026-05-20 00:11:36.746479+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.3389/fenrg.2020.00111/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

Bogaerts A and Centi G 2020Frontiers in En- ergy Research8ISSN 2296-598X URLhttps: //www.frontiersin.org/journals/energy-research/ articles/10.3389/fenrg.2020.00111/full

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.3389/fenrg.2020.00111/full",
  "raw_excerpt": "Bogaerts A and Centi G 2020Frontiers in En- ergy Research8ISSN 2296-598X URLhttps: //www.frontiersin.org/journals/energy-research/ articles/10.3389/fenrg.2020.00111/full",
  "ref_index": 10,
  "verdict_class": "cross_source"
}