Unresolvable Identifier
critical
doi_compliance
unresolvable_identifier
Identifier '10.4153/cjm-1964-046-3' 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
Moon, J. W. , title =. Can. J. Math. , issn =. 1964 , language =. doi:10.4153/CJM-1964-046-3 , zbMATH =
Evidence payload
{
"arxiv_id": null,
"checked_sources": [
"crossref_by_doi",
"openalex_by_doi",
"doi_org_head"
],
"doi": "10.4153/cjm-1964-046-3",
"raw_excerpt": "Moon, J. W. , title =. Can. J. Math. , issn =. 1964 , language =. doi:10.4153/CJM-1964-046-3 , zbMATH =",
"ref_index": 7,
"verdict_class": "cross_source"
}