Pith Number

pith:LJNPOELV

pith:2009:LJNPOELV5VNMXSDUXA2SNLV6RF

not attested not anchored not stored refs pending

Hierarchical subspace models for contingency tables

Akimichi Takemura, Hisayuki Hara, Tomonari Sei

arxiv:0909.4821 v2 · 2009-09-25 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LJNPOELV5VNMXSDUXA2SNLV6RF}

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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	2026-05-18T04:15:04.771989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a5af71175ed5acbc874b83526aebe8944e3296f448e67c0e5689e9ff6512801

Aliases

arxiv: 0909.4821 · arxiv_version: 0909.4821v2 · doi: 10.48550/arxiv.0909.4821 · pith_short_12: LJNPOELV5VNM · pith_short_16: LJNPOELV5VNMXSDU · pith_short_8: LJNPOELV

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/LJNPOELV5VNMXSDUXA2SNLV6RF \
  | 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: 5a5af71175ed5acbc874b83526aebe8944e3296f448e67c0e5689e9ff6512801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acf5868da32093b7d8e83e82407ecf1272cc1f7d8320d8baf28435204c8784ae",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2009-09-25T23:58:39Z",
    "title_canon_sha256": "f2669e324cc996f3b5990e00c8845925e7a079ee97fbeabc6597cce79ae5fa42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4821",
    "kind": "arxiv",
    "version": 2
  }
}