Pith Number

pith:PSPMCUI2

pith:2015:PSPMCUI2PO7IV662CDDX36QHWT

not attested not anchored not stored refs pending

WarpLDA: a Cache Efficient O(1) Algorithm for Latent Dirichlet Allocation

Jianfei Chen, Jun Zhu, Kaiwei Li, Wenguang Chen

arxiv:1510.08628 v2 · 2015-10-29 · stat.ML · cs.DC · cs.IR · 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{PSPMCUI2PO7IV662CDDX36QHWT}

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	2026-05-18T01:19:44.091819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c9ec1511a7bbe8afbda10c77dfa07b4eb133f03c34f97c0c0f08f431b57dd9c

Aliases

arxiv: 1510.08628 · arxiv_version: 1510.08628v2 · doi: 10.48550/arxiv.1510.08628 · pith_short_12: PSPMCUI2PO7I · pith_short_16: PSPMCUI2PO7IV662 · pith_short_8: PSPMCUI2

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/PSPMCUI2PO7IV662CDDX36QHWT \
  | 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: 7c9ec1511a7bbe8afbda10c77dfa07b4eb133f03c34f97c0c0f08f431b57dd9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed21e0188a02ec976f9a9f1d6d11e9f9b8e0f3e3fdc7161763e0ca7840c95a38",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-10-29T10:33:20Z",
    "title_canon_sha256": "8f6c1e845ca6e6ec25abad57acee93fde71622f8fad22fb753faa7a9a2a30161"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08628",
    "kind": "arxiv",
    "version": 2
  }
}