Pith Number

pith:3JP4RZ2D

pith:2010:3JP4RZ2DCPRXEJG4GAMPN6FZCA

not attested not anchored not stored refs pending

Bulking II: Classifications of Cellular Automata

Guillaume Theyssier (LAMA), Jacques Mazoyer (LIP), Marianne Delorme (LIP), Nicolas Ollinger (LIF)

arxiv:1001.5471 v2 · 2010-01-29 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3JP4RZ2DCPRXEJG4GAMPN6FZCA}

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	2026-05-18T04:40:21.698700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da5fc8e74313e37224dc3018f6f8b9103e65de14e0c5574f1f1374db19f6de1a

Aliases

arxiv: 1001.5471 · arxiv_version: 1001.5471v2 · doi: 10.48550/arxiv.1001.5471 · pith_short_12: 3JP4RZ2DCPRX · pith_short_16: 3JP4RZ2DCPRXEJG4 · pith_short_8: 3JP4RZ2D

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/3JP4RZ2DCPRXEJG4GAMPN6FZCA \
  | 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: da5fc8e74313e37224dc3018f6f8b9103e65de14e0c5574f1f1374db19f6de1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14e1c726ddeaa2e3af42d61419d99a2f3d1b25ccf3f7fdade49bb51fd99c4655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2010-01-29T20:15:23Z",
    "title_canon_sha256": "c9c9db449bbb4ec12b8f29250827daca286db31be2b624cb6816604518acb4a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.5471",
    "kind": "arxiv",
    "version": 2
  }
}