Pith Number

pith:WTO5EQGY

pith:2013:WTO5EQGYM3FCNNFV4PDXGX6NXE

not attested not anchored not stored refs pending

Minimal entropy approximation for cellular automata

Henryk Fuk\'s

arxiv:1305.1240 v1 · 2013-05-06 · nlin.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTO5EQGYM3FCNNFV4PDXGX6NXE}

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	2026-05-18T01:21:49.572479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4ddd240d866ca26b4b5e3c7735fcdb93f955c6130e3b35566c0dfad696c6d82

Aliases

arxiv: 1305.1240 · arxiv_version: 1305.1240v1 · doi: 10.48550/arxiv.1305.1240 · pith_short_12: WTO5EQGYM3FC · pith_short_16: WTO5EQGYM3FCNNFV · pith_short_8: WTO5EQGY

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/WTO5EQGYM3FCNNFV4PDXGX6NXE \
  | 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: b4ddd240d866ca26b4b5e3c7735fcdb93f955c6130e3b35566c0dfad696c6d82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b32921c37b5c0fd96f6428072d3dc23d04e54d1192fa1365de03135466feb366",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2013-05-06T16:32:01Z",
    "title_canon_sha256": "f8f796764cf7c0aec121bbfae2df34eefd8bf36c850b320d8eccb696d787df83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1240",
    "kind": "arxiv",
    "version": 1
  }
}