Pith Number

pith:67D5WDD5

pith:2021:67D5WDD5PFBRGWKSP5KFX3TS3P

not attested not anchored not stored refs pending

Assisting the Human Fact-Checkers: Detecting All Previously Fact-Checked Claims in a Document

Aisha Mohamed, Firoj Alam, Giovanni Da San Martino, Nikola Georgiev, Preslav Nakov, Shaden Shaar

arxiv:2109.07410 v3 · 2021-09-14 · cs.CL · cs.AI · cs.CY · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67D5WDD5PFBRGWKSP5KFX3TS3P}

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	2026-07-05T05:15:57.424801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7c7db0c7d79431359527f545bee72dbc56f2145c0270c673c21232978a2f1c9

Aliases

arxiv: 2109.07410 · arxiv_version: 2109.07410v3 · doi: 10.48550/arxiv.2109.07410 · pith_short_12: 67D5WDD5PFBR · pith_short_16: 67D5WDD5PFBRGWKS · pith_short_8: 67D5WDD5

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/67D5WDD5PFBRGWKSP5KFX3TS3P \
  | 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: f7c7db0c7d79431359527f545bee72dbc56f2145c0270c673c21232978a2f1c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "444e2c8d8fccb29be579ea1fed4818b44492fcb3f3d159488203d27b77f22789",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-14T13:46:52Z",
    "title_canon_sha256": "901b9155dac0a14cbad6ca75997161d32e1dd3ffd6344ab6ac693406359b9306"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.07410",
    "kind": "arxiv",
    "version": 3
  }
}