Pith Number

pith:OONJFZSP

pith:2016:OONJFZSP2FJNRSTEUV2VRBE6FP

not attested not anchored not stored refs pending

Topic Modelling and Event Identification from Twitter Textual Data

Chris Orwa, Joshua Ramisch, Kanyi Huang, Marina Sokolova, Nanjira Sambuli, Renee Black, Sidney Ochieng, Stan Matwin, Vera Sazonova

arxiv:1608.02519 v1 · 2016-08-08 · cs.SI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OONJFZSP2FJNRSTEUV2VRBE6FP}

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	2026-05-18T01:09:39.757468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

739a92e64fd152d8ca64a57558849e2be48e6ff1a223c8dad4fe229b176059ee

Aliases

arxiv: 1608.02519 · arxiv_version: 1608.02519v1 · doi: 10.48550/arxiv.1608.02519 · pith_short_12: OONJFZSP2FJN · pith_short_16: OONJFZSP2FJNRSTE · pith_short_8: OONJFZSP

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/OONJFZSP2FJNRSTEUV2VRBE6FP \
  | 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: 739a92e64fd152d8ca64a57558849e2be48e6ff1a223c8dad4fe229b176059ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "321803a5cea8f05c8d26ac01a2e44b282118e30760ad6452fdbe33a076f3b77d",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2016-08-08T17:03:03Z",
    "title_canon_sha256": "36b9ae6e84f4456834ed730c22379bee22d630081cd5ec464479337b4a9eb66f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02519",
    "kind": "arxiv",
    "version": 1
  }
}