Pith Number

pith:DPIQ6XI7

pith:2014:DPIQ6XI7EZLGX2P22Y2Q6S6UNQ

not attested not anchored not stored refs pending

A weakly universal cellular automaton in the pentagrid with five states

Maurice Margenstern

arxiv:1403.2373 v1 · 2014-03-08 · nlin.CG · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPIQ6XI7EZLGX2P22Y2Q6S6UNQ}

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	2026-05-18T02:56:43.423686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bd10f5d1f26566be9fad6350f4bd46c1b1fc94fcbfdbc7e405574672ccd68f0

Aliases

arxiv: 1403.2373 · arxiv_version: 1403.2373v1 · doi: 10.48550/arxiv.1403.2373 · pith_short_12: DPIQ6XI7EZLG · pith_short_16: DPIQ6XI7EZLGX2P2 · pith_short_8: DPIQ6XI7

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/DPIQ6XI7EZLGX2P22Y2Q6S6UNQ \
  | 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: 1bd10f5d1f26566be9fad6350f4bd46c1b1fc94fcbfdbc7e405574672ccd68f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6188af7e50bbb4de95a41615069b79044aee87e32f462d35ba153e892c366817",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2014-03-08T15:23:05Z",
    "title_canon_sha256": "ca1afd50bdd8c5fe0fa729dad79a3d82d866f60f874327fc5c1ec84b606de4e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.2373",
    "kind": "arxiv",
    "version": 1
  }
}