Unresolvable Identifier

arXiv:2605.02401 · detector doi_compliance · cross_source · 2026-05-19 16:23:40.304362+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1109/mwc.001.2000344' 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

Y. Zeng and X. Xu, “Toward environment-aware 6G communications via channel knowledge map,” IEEE Wireless Commun. , vol. 28, no. 3, pp. 84–91, Jun. 2021, doi: 10.1109/MWC.001.2000344

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1109/mwc.001.2000344",
  "raw_excerpt": "Y. Zeng and X. Xu, \u201cToward environment-aware 6G communications via channel knowledge map,\u201d IEEE Wireless Commun. , vol. 28, no. 3, pp. 84\u201391, Jun. 2021, doi: 10.1109/MWC.001.2000344",
  "ref_index": 19,
  "verdict_class": "cross_source"
}