Pith Number

pith:XF5M7G2K

pith:2013:XF5M7G2KDWQWWJMNLFZJMPITAE

not attested not anchored not stored refs pending

Model trees with topic model preprocessing: An approach for data journalism illustrated with the WikiLeaks Afghanistan war logs

Kurt Hornik, Paul Hofmarcher, Reinhold Hatzinger, Thomas Rusch

arxiv:1312.1548 v1 · 2013-12-05 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XF5M7G2KDWQWWJMNLFZJMPITAE}

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	2026-05-18T03:05:26.963491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b97acf9b4a1da16b258d5972963d13010b0b85b92e5727d8b9ce547431486a09

Aliases

arxiv: 1312.1548 · arxiv_version: 1312.1548v1 · doi: 10.48550/arxiv.1312.1548 · pith_short_12: XF5M7G2KDWQW · pith_short_16: XF5M7G2KDWQWWJMN · pith_short_8: XF5M7G2K

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/XF5M7G2KDWQWWJMNLFZJMPITAE \
  | 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: b97acf9b4a1da16b258d5972963d13010b0b85b92e5727d8b9ce547431486a09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74cfe8c4e2ac4329ca13b324df89eebc8d5cdaf17d73668171126aed7a98c9ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2013-12-05T13:56:41Z",
    "title_canon_sha256": "a3d7b155e3c120002283aa1c504efef687d3bd89ea492c940db5d21bcb816edf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1548",
    "kind": "arxiv",
    "version": 1
  }
}