Pith Number

pith:WA4CEXA4

pith:2013:WA4CEXA4VOLN3UTPKY45KVS2JA

not attested not anchored not stored refs pending

Marginal Likelihoods for Distributed Parameter Estimation of Gaussian Graphical Models

Alfred O. Hero III, Ami Wiesel, Dennis Wei, Zhaoshi Meng

arxiv:1303.4756 v6 · 2013-03-19 · stat.ML · cs.LG

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

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	2026-05-18T01:51:00.538591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b038225c1cab96ddd26f5639d5565a480cb9aec3201bae81f4b3312d5bd11943

Aliases

arxiv: 1303.4756 · arxiv_version: 1303.4756v6 · doi: 10.48550/arxiv.1303.4756 · pith_short_12: WA4CEXA4VOLN · pith_short_16: WA4CEXA4VOLN3UTP · pith_short_8: WA4CEXA4

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/WA4CEXA4VOLN3UTPKY45KVS2JA \
  | 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: b038225c1cab96ddd26f5639d5565a480cb9aec3201bae81f4b3312d5bd11943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77b3b7390d0b7904e54950f13c63753b0da4e7658be7703d46f02fd41f16d09f",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-03-19T20:34:47Z",
    "title_canon_sha256": "53262420af7999d50bed411b50ff5fa1a5814838080b80d120b150a900a35377"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4756",
    "kind": "arxiv",
    "version": 6
  }
}