Unresolvable Identifier
critical
doi_compliance
unresolvable_identifier
Identifier '10.1038/s41598-025-33547-w.url:http://dx.doi.org/10.1038/s41598-025-33547-w' 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
D. Fonnesu et al. “Recipe optimization and SRF test of Cu-compatible Nb3Sn films by DC magnetron sputtering from a stoichiometric target”. In:Scientific Reports16.1 (Jan. 2026).issn: 2045-2322.doi: 10.1038/s41598-025-33547-w.url:http://dx.doi.org/10.1038/s41598-025-33547-w
Evidence payload
{
"arxiv_id": null,
"checked_sources": [
"crossref_by_doi",
"openalex_by_doi",
"doi_org_head"
],
"doi": "10.1038/s41598-025-33547-w.url:http://dx.doi.org/10.1038/s41598-025-33547-w",
"raw_excerpt": "D. Fonnesu et al. \u201cRecipe optimization and SRF test of Cu-compatible Nb3Sn films by DC magnetron sputtering from a stoichiometric target\u201d. In:Scientific Reports16.1 (Jan. 2026).issn: 2045-2322.doi: 10.1038/s41598-025-33547-w.url:http://dx.doi.org/10.1038/s41598-025-33547-w",
"ref_index": 5,
"verdict_class": "cross_source"
}