Pith Number

pith:Y5HU2NAX

pith:2026:Y5HU2NAXQVDIPX2JM2L2P6MCIE

not attested not anchored not stored refs pending

Overfitted high-dimensional matrix factorizations via adaptive spectral shrinkage

David B. Dunson, Lorenzo Mauri

arxiv:2606.19540 v1 · 2026-06-17 · stat.ME · stat.CO · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5HU2NAXQVDIPX2JM2L2P6MCIE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-19T16:12:28.484017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74f4d3417854687df496697a7f982413e2d33ba01c68567c87d24e6336312c4

Aliases

arxiv: 2606.19540 · arxiv_version: 2606.19540v1 · doi: 10.48550/arxiv.2606.19540 · pith_short_12: Y5HU2NAXQVDI · pith_short_16: Y5HU2NAXQVDIPX2J · pith_short_8: Y5HU2NAX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/Y5HU2NAXQVDIPX2JM2L2P6MCIE \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c74f4d3417854687df496697a7f982413e2d33ba01c68567c87d24e6336312c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a02a03cc32ab9e2e58ec1be7af88ee523f255e7fd23de5c8c4e47ac23479210",
    "cross_cats_sorted": [
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-06-17T19:33:03Z",
    "title_canon_sha256": "1ae1715ed65893aeea227bb571c0c5201d904aac350c18f4cc94ea746d240db9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19540",
    "kind": "arxiv",
    "version": 1
  }
}