Recoverable Identifier

arXiv:2604.25209 · detector doi_compliance · incontrovertible · 2026-05-19 21:23:09.389929+00:00

advisory doi_compliance recoverable_identifier

DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1073/pnas.xxxxxxxxxxKolpakovet) was visible in the surrounding text but could not be confirmed against doi.org as printed.

Paper page Integrity report arXiv Try DOI

Evidence text

A Kolpakov, I Rivin, DiRe – RAPIDS on the arXiv corpus (2026). 4| www.pnas.org/cgi/doi/10.1073/pnas.XXXXXXXXXX Kolpakovet al. DRAFT DiRe (n=60,000) cuML UMAP (n=60,000) cs.IT math-ph math.AG math.AP math.CA math.CO math.DG math.DS math.FA math.GT math.NA math.NT math.OC math.PR math.RT other Fig. 4.arXiv-paper 2-D layout, DiRe (left) vs cuML UMAP (right), coloured by primary arXiv category. Both methods recover category structure; UMAP produces tighter but more fragmented islands with visible gaps in long-range category similarity (e.g. math.DG vs math.SG). DiRe’s layout is smoother and preserves the inter-category topology of the reference 384-D point cloud more faithfully. Kolpakovet al. PNAS |April 30, 2026| vol. XXX | no. XX |5

Evidence payload

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  "printed_excerpt": "A Kolpakov, I Rivin, DiRe \u2013 RAPIDS on the arXiv corpus (2026). 4| www.pnas.org/cgi/doi/10.1073/pnas.XXXXXXXXXX Kolpakovet al. DRAFT DiRe (n=60,000) cuML UMAP (n=60,000) cs.IT math-ph math.AG math.AP math.CA math.CO math.DG math.DS math.FA m",
  "reconstructed_doi": "10.1073/pnas.xxxxxxxxxxKolpakovet",
  "ref_index": 15,
  "resolved_title": null,
  "verdict_class": "incontrovertible"
}