Unresolvable Identifier

arXiv:2605.21301 · detector doi_compliance · cross_source · 2026-05-21 06:13:01.556233+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1109/tmi.2021.3093206' 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

Yang, J., Angelini, E.D., Balte, P.P., Hoffman, E.A., Austin, J.H.M., Smith, B.M., Barr, R.G., Laine, A.F.: Novel subtypes of pulmonary emphysema based on spatially-informed lung texture learning. IEEE Transactions on Medical Imaging 40(12), 3652–3662 (2021) https://doi.org/10.1109/TMI.2021.3093206

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1109/tmi.2021.3093206",
  "raw_excerpt": "Yang, J., Angelini, E.D., Balte, P.P., Hoffman, E.A., Austin, J.H.M., Smith, B.M., Barr, R.G., Laine, A.F.: Novel subtypes of pulmonary emphysema based on spatially-informed lung texture learning. IEEE Transactions on Medical Imaging 40(12), 3652\u20133662 (2021) https://doi.org/10.1109/TMI.2021.3093206",
  "ref_index": 10,
  "verdict_class": "cross_source"
}