Pith Number

pith:FR4W2V4P

pith:2012:FR4W2V4PYAR5FIQA5RCSQWZ64K

not attested not anchored not stored refs pending

ET-LDA: Joint Topic Modeling For Aligning, Analyzing and Sensemaking of Public Events and Their Twitter Feeds

Ajita John, Doree Duncan Seligmann, Fei Wang, Subbarao Kambhampati, Yuheng Hu

arxiv:1210.2164 v3 · 2012-10-08 · cs.LG · cs.AI · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FR4W2V4PYAR5FIQA5RCSQWZ64K}

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	2026-05-18T03:38:02.585810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c796d578fc023d2a200ec45285b3ee29c00467ac093e7431ffb2291cdf6ee01

Aliases

arxiv: 1210.2164 · arxiv_version: 1210.2164v3 · doi: 10.48550/arxiv.1210.2164 · pith_short_12: FR4W2V4PYAR5 · pith_short_16: FR4W2V4PYAR5FIQA · pith_short_8: FR4W2V4P

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/FR4W2V4PYAR5FIQA5RCSQWZ64K \
  | 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: 2c796d578fc023d2a200ec45285b3ee29c00467ac093e7431ffb2291cdf6ee01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa681cea2b2ed2b8a117841691817a0ad4fca78cf4df0912e52d8c11eb210a2e",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-10-08T07:24:38Z",
    "title_canon_sha256": "19bb458ad910be81bec3d37896cc3e85fae984a74f1ed42b9abc45cf00def8e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2164",
    "kind": "arxiv",
    "version": 3
  }
}