Pith Number

pith:NA4WNANS

pith:2025:NA4WNANSETRUSW36DKEUS2O6MD

not attested not anchored not stored refs pending

Feature aware covariance estimation, with application to mixtures of chemical exposures

David B. Dunson, Elizabeth Bersson, Heather M. Stapleton, Kate Hoffman

arxiv:2504.08220 v2 · 2025-04-11 · stat.ME · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NA4WNANSETRUSW36DKEUS2O6MD}

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	2026-05-20T01:04:53.676131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68396681b224e3495b7e1a894969de60f8641f95771773838094074f2b611c1d

Aliases

arxiv: 2504.08220 · arxiv_version: 2504.08220v2 · doi: 10.48550/arxiv.2504.08220 · pith_short_12: NA4WNANSETRU · pith_short_16: NA4WNANSETRUSW36 · pith_short_8: NA4WNANS

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/NA4WNANSETRUSW36DKEUS2O6MD \
  | 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: 68396681b224e3495b7e1a894969de60f8641f95771773838094074f2b611c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b6265951d377228f789083e9e03fbaa136c1b8399567b4a6f2e5b5e2a948fb1",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-04-11T03:00:12Z",
    "title_canon_sha256": "6f8e5785d2ac06dc6d4aa229dd522d86905cdeb3dda846bc82eae880c31eb7b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.08220",
    "kind": "arxiv",
    "version": 2
  }
}