Unresolvable Identifier

arXiv:2605.04731 · detector doi_compliance · cross_source · 2026-05-19 14:12:49.387444+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.2905/2ff68a52-5b5b-4532-88cb-c5a729c3f5d0' 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

M. Schiavina, S. Freire, A. Carioli, K. MacManus, GHS-POP R2023A – GHS population grid multitemporal (1975–2030), European Commis- sion, Joint Research Centre (JRC), available at 100m resolution (2023). doi:10.2905/2FF68A52-5B5B-4532-88CB-C5A729C3F5D0

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.2905/2ff68a52-5b5b-4532-88cb-c5a729c3f5d0",
  "raw_excerpt": "M. Schiavina, S. Freire, A. Carioli, K. MacManus, GHS-POP R2023A \u2013 GHS population grid multitemporal (1975\u20132030), European Commis- sion, Joint Research Centre (JRC), available at 100m resolution (2023). doi:10.2905/2FF68A52-5B5B-4532-88CB-C5A729C3F5D0",
  "ref_index": 10,
  "verdict_class": "cross_source"
}