Pith Number

pith:OOQJ2W66

pith:2017:OOQJ2W665FKUDTVYLWJKB5ZGWQ

not attested not anchored not stored refs pending

Latent Dirichlet Allocation (LDA) and Topic modeling: models, applications, a survey

Chi Yuan, Hamed Jelodar, Liang Zhao, Xia Feng, Xiahui Jiang, Yanchao Li, Yongli Wang

arxiv:1711.04305 v2 · 2017-11-12 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOQJ2W665FKUDTVYLWJKB5ZGWQ}

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	2026-05-17T23:58:59.359881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73a09d5bdee95541ceb85d92a0f726b43d71eeb010c9d7e2951fd4ae8f63cd23

Aliases

arxiv: 1711.04305 · arxiv_version: 1711.04305v2 · doi: 10.48550/arxiv.1711.04305 · pith_short_12: OOQJ2W665FKU · pith_short_16: OOQJ2W665FKUDTVY · pith_short_8: OOQJ2W66

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/OOQJ2W665FKUDTVYLWJKB5ZGWQ \
  | 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: 73a09d5bdee95541ceb85d92a0f726b43d71eeb010c9d7e2951fd4ae8f63cd23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a13845542f2063d04522287f34b6dc8061f047aac9403f75a39815acdb12456",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-11-12T14:50:14Z",
    "title_canon_sha256": "079fcbf3a94873b260ea9da8aad60b1916b3646e7d85fdc7b73cc9c3c18fab95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04305",
    "kind": "arxiv",
    "version": 2
  }
}