Pith Number

pith:4VICJBKM

pith:2013:4VICJBKMY6UO3NFPKVC46IUPHB

not attested not anchored not stored refs pending

Tagging Scientific Publications using Wikipedia and Natural Language Processing Tools. Comparison on the ArXiv Dataset

{\L}ukasz Bolikowski, Micha{\l} {\L}opuszy\'nski

arxiv:1309.0326 v3 · 2013-09-02 · cs.CL · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VICJBKMY6UO3NFPKVC46IUPHB}

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	2026-05-18T02:38:46.247891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e55024854cc7a8edb4af5545cf228f3877298cd01bf7c5b6e9332358aef6ba35

Aliases

arxiv: 1309.0326 · arxiv_version: 1309.0326v3 · doi: 10.48550/arxiv.1309.0326 · pith_short_12: 4VICJBKMY6UO · pith_short_16: 4VICJBKMY6UO3NFP · pith_short_8: 4VICJBKM

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/4VICJBKMY6UO3NFPKVC46IUPHB \
  | 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: e55024854cc7a8edb4af5545cf228f3877298cd01bf7c5b6e9332358aef6ba35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dad35a20d06caf292e07877c6154a1a815199025e09f043643f59c214ebfb246",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-09-02T09:09:27Z",
    "title_canon_sha256": "f782d683dcf1e3684a3c2c4042fdcc996dbc35fca30c2de923bdec2d9a49d0d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0326",
    "kind": "arxiv",
    "version": 3
  }
}