Pith Number

pith:IUM3SKSM

pith:2011:IUM3SKSMF7UYSGEFHM2TLHPB7T

not attested not anchored not stored refs pending

Using Variational Inference and MapReduce to Scale Topic Modeling

Jordan Boyd-Graber, Ke Zhai, Nima Asadi

arxiv:1107.3765 v1 · 2011-07-19 · cs.AI · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUM3SKSMF7UYSGEFHM2TLHPB7T}

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	2026-05-18T04:17:16.032620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4519b92a4c2fe98918853b35359de1fcc49693aec1ecba4383ca69ad9b0e6d36

Aliases

arxiv: 1107.3765 · arxiv_version: 1107.3765v1 · doi: 10.48550/arxiv.1107.3765 · pith_short_12: IUM3SKSMF7UY · pith_short_16: IUM3SKSMF7UYSGEF · pith_short_8: IUM3SKSM

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/IUM3SKSMF7UYSGEFHM2TLHPB7T \
  | 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: 4519b92a4c2fe98918853b35359de1fcc49693aec1ecba4383ca69ad9b0e6d36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a81fe3af9005b3aa5e699d5770397eba286666a261da9903e25c4522c29495bd",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-07-19T16:32:22Z",
    "title_canon_sha256": "347c16a48beffc7b2e9435231480599cf453fd7e66c7259a0226a27ee7511631"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3765",
    "kind": "arxiv",
    "version": 1
  }
}