Pith Number

pith:PNHGUBPB

pith:2012:PNHGUBPBZS2JP5SAXJSAVWGAUZ

not attested not anchored not stored refs pending

ET-LDA: Joint Topic Modeling for Aligning Events and their Twitter Feedback

Ajita John, Fei Wang, Subbarao Kambhampati, Yuheng Hu

arxiv:1211.3089 v2 · 2012-11-13 · cs.SI · cs.AI · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PNHGUBPBZS2JP5SAXJSAVWGAUZ}

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	2026-05-18T03:38:02.518529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b4e6a05e1ccb497f640ba640ad8c0a67a3b4c0e3f8ed691f285ccb8ba2ed91c

Aliases

arxiv: 1211.3089 · arxiv_version: 1211.3089v2 · doi: 10.48550/arxiv.1211.3089 · pith_short_12: PNHGUBPBZS2J · pith_short_16: PNHGUBPBZS2JP5SA · pith_short_8: PNHGUBPB

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/PNHGUBPBZS2JP5SAXJSAVWGAUZ \
  | 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: 7b4e6a05e1ccb497f640ba640ad8c0a67a3b4c0e3f8ed691f285ccb8ba2ed91c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b6c0568885fb62d685709017ec92d1eb7b2f4c00ce5456b6a54b3d37cd26e45",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2012-11-13T19:46:51Z",
    "title_canon_sha256": "87b7aa3ee5ecc3fd3df836644841e97bd843dbef5ef2dc3387fbe817aed0067f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3089",
    "kind": "arxiv",
    "version": 2
  }
}