Unresolvable Identifier

arXiv:2605.03942 · detector doi_compliance · cross_source · 2026-05-19 14:54:43.684694+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1016/j.nrr.2021.03.005' 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

Pan, W., Torres-Verdín, C., & Pyrcz, M. J. (2021). Stochastic pix2pix: A new machine learning method for geophysical and well conditioning of rule-based channel reservoir models. Natural Resources Research, 30, 1319–1345. https://doi.org/10.1016/j.nrr.2021.03.005

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1016/j.nrr.2021.03.005",
  "raw_excerpt": "Pan, W., Torres-Verd\u00edn, C., & Pyrcz, M. J. (2021). Stochastic pix2pix: A new machine learning method for geophysical and well conditioning of rule-based channel reservoir models. Natural Resources Research, 30, 1319\u20131345. https://doi.org/10.1016/j.nrr.2021.03.005",
  "ref_index": 17,
  "verdict_class": "cross_source"
}