Pith Number

pith:VHD7H3SD

pith:2013:VHD7H3SD4GT6KWEI735Y2LUDEY

not attested not anchored not stored refs pending

Says who? Automatic Text-Based Content Analysis of Television News

Carlos Castillo, Gianmarco De Francisci Morales, Marcelo Mendoza, Nasir Khan

arxiv:1307.4879 v2 · 2013-07-18 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHD7H3SD4GT6KWEI735Y2LUDEY}

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	2026-05-18T03:14:40.619474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9c7f3ee43e1a7e55888fefb8d2e8326266957b5ab6a7f70f9c1c641fc919435

Aliases

arxiv: 1307.4879 · arxiv_version: 1307.4879v2 · doi: 10.48550/arxiv.1307.4879 · pith_short_12: VHD7H3SD4GT6 · pith_short_16: VHD7H3SD4GT6KWEI · pith_short_8: VHD7H3SD

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/VHD7H3SD4GT6KWEI735Y2LUDEY \
  | 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: a9c7f3ee43e1a7e55888fefb8d2e8326266957b5ab6a7f70f9c1c641fc919435

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f073221fe5b88237925462d541c9de747cd54038f5322de3e14cc1762478ed3",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-07-18T09:37:45Z",
    "title_canon_sha256": "247430e697a478e9089c5dcee4b1e6cc92bd88ec455cf04d80d130835de320c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4879",
    "kind": "arxiv",
    "version": 2
  }
}