Pith Number

pith:UURJC7NV

pith:2012:UURJC7NV3SPAKPJUY2PVO5HEDY

not attested not anchored not stored refs pending

Nested Hierarchical Dirichlet Processes

Chong Wang, David M. Blei, John Paisley, Michael I. Jordan

arxiv:1210.6738 v4 · 2012-10-25 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UURJC7NV3SPAKPJUY2PVO5HEDY}

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	2026-05-18T00:58:18.014882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a522917db5dc9e053d34c69f5774e41e2254bd395ac0b8199372c7bf72aca750

Aliases

arxiv: 1210.6738 · arxiv_version: 1210.6738v4 · doi: 10.48550/arxiv.1210.6738 · pith_short_12: UURJC7NV3SPA · pith_short_16: UURJC7NV3SPAKPJU · pith_short_8: UURJC7NV

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/UURJC7NV3SPAKPJUY2PVO5HEDY \
  | 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: a522917db5dc9e053d34c69f5774e41e2254bd395ac0b8199372c7bf72aca750

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba73ff643ab96c8bf6175edb5c02daec0c8d9ed066002b8861294955c7d03b1a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-10-25T04:25:00Z",
    "title_canon_sha256": "a05cdcc5c7dfd2e0cac610597d225402af72d4e63ed3198e1e177a76ceb134c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6738",
    "kind": "arxiv",
    "version": 4
  }
}