Pith Number

pith:6SZIP4JZ

pith:2013:6SZIP4JZ2RXSTHWY2WKE76C6XF

not attested not anchored not stored refs pending

JRC EuroVoc Indexer JEX - A freely available multi-label categorisation tool

Marco Turchi, Mohamed Ebrahim, Ralf Steinberger

arxiv:1309.5223 v1 · 2013-09-20 · 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{6SZIP4JZ2RXSTHWY2WKE76C6XF}

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	2026-05-18T03:12:47.192460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b287f139d46f299ed8d5944ff85eb970c56197eae9364f917ea0e42d2be66d

Aliases

arxiv: 1309.5223 · arxiv_version: 1309.5223v1 · doi: 10.48550/arxiv.1309.5223 · pith_short_12: 6SZIP4JZ2RXS · pith_short_16: 6SZIP4JZ2RXSTHWY · pith_short_8: 6SZIP4JZ

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/6SZIP4JZ2RXSTHWY2WKE76C6XF \
  | 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: f4b287f139d46f299ed8d5944ff85eb970c56197eae9364f917ea0e42d2be66d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfe84ac71ecddf9cfe574e5a56242b58e0c08865d6e6f26cbaf783924e861dfc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-09-20T09:51:59Z",
    "title_canon_sha256": "8f819f795ef635ed865dbc137ee4d19b7b7aaa295db6959ce7685e22d2559d51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5223",
    "kind": "arxiv",
    "version": 1
  }
}