Pith Number

pith:A65RBONW

pith:2021:A65RBONWZECCTAF574I7NZHMLW

not attested not anchored not stored refs pending

Overview of the CLEF--2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News

Alberto Barr\'on-Cede\~no, Alex Nikolov, Bayan Hamdan, Fatima Haouari, Firoj Alam, Gautam Kishore Shahi, Giovanni Da San Martino, Julia Maria Stru{\ss}, Maram Hasanain, Mucahid Kutlu, Nikolay Babulkov, Preslav Nakov, Rub\'en M\'iguez, Shaden Shaar, Tamer Elsayed, Thomas Mandl, Watheq Mansour, Yavuz Selim Kartal, Zien Sheikh Ali

arxiv:2109.12987 v1 · 2021-09-23 · cs.CL · cs.IR · cs.LG · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A65RBONWZECCTAF574I7NZHMLW}

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.

Cited by

1 paper in Pith

From Articles to Premises: Building PrimeFacts, an Extraction Methodology and Resource for Fact-Checking Evidence

Receipt and verification

First computed	2026-07-05T03:17:39.836850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07bb10b9b6c9042980bdff11f6e4ec5dbc8f793f3d0a9e83ca7b280366ad84ac

Aliases

arxiv: 2109.12987 · arxiv_version: 2109.12987v1 · doi: 10.48550/arxiv.2109.12987 · pith_short_12: A65RBONWZECC · pith_short_16: A65RBONWZECCTAF5 · pith_short_8: A65RBONW

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/A65RBONWZECCTAF574I7NZHMLW \
  | 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: 07bb10b9b6c9042980bdff11f6e4ec5dbc8f793f3d0a9e83ca7b280366ad84ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b0c1299d779d542a14b5432c3fdbd3b1ed6754fd0dd04c11d42294bf84c3327",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-23T06:10:36Z",
    "title_canon_sha256": "d614f9f9ddae93370440a9978252da5c99b548a587b0065c6c957f133726421d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12987",
    "kind": "arxiv",
    "version": 1
  }
}