Pith Number

pith:4OBHCRCA

pith:2019:4OBHCRCAMWF4LJGNEPH4MKYJHE

not attested not anchored not stored refs pending

On Privacy Protection of Latent Dirichlet Allocation Model Training

Fangyuan Zhao, Shusen Yang, Xinyu Yang, Xuebin Ren

arxiv:1906.01178 v2 · 2019-06-04 · cs.LG · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OBHCRCAMWF4LJGNEPH4MKYJHE}

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	2026-05-17T23:41:52.902093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e382714440658bc5a4cd23cfc62b0939372959fcea192fee79425694c91e944f

Aliases

arxiv: 1906.01178 · arxiv_version: 1906.01178v2 · doi: 10.48550/arxiv.1906.01178 · pith_short_12: 4OBHCRCAMWF4 · pith_short_16: 4OBHCRCAMWF4LJGN · pith_short_8: 4OBHCRCA

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/4OBHCRCAMWF4LJGNEPH4MKYJHE \
  | 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: e382714440658bc5a4cd23cfc62b0939372959fcea192fee79425694c91e944f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8ab9586d9aba23a8463afd1cc577ee16c2190b218e80b055abc3838fea51e58",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-04T03:25:17Z",
    "title_canon_sha256": "8594db8f1536bd6d5627378db78671f52ffb42a368d2a3c38e3d93b134dec90d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01178",
    "kind": "arxiv",
    "version": 2
  }
}