Pith Number

pith:THVMFJXC

pith:2015:THVMFJXCPBPTPDN4BJYW6N7L42

not attested not anchored not stored refs pending

A weakly universal cellular automaton with 2 states on the tiling {11,3}

Maurice Margenstern

arxiv:1501.06328 v1 · 2015-01-26 · nlin.CG · 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{THVMFJXCPBPTPDN4BJYW6N7L42}

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	2026-05-18T02:28:41.753977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99eac2a6e2785f378dbc0a716f37ebe6a8bdbc71478acd143a4f492ffa745361

Aliases

arxiv: 1501.06328 · arxiv_version: 1501.06328v1 · doi: 10.48550/arxiv.1501.06328 · pith_short_12: THVMFJXCPBPT · pith_short_16: THVMFJXCPBPTPDN4 · pith_short_8: THVMFJXC

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/THVMFJXCPBPTPDN4BJYW6N7L42 \
  | 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: 99eac2a6e2785f378dbc0a716f37ebe6a8bdbc71478acd143a4f492ffa745361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d916b35c9f610599453423256552bcc61836638478fdf17ea2f80d934bc00ec0",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2015-01-26T10:56:49Z",
    "title_canon_sha256": "bed6981c839f2dbc38dc310a5811d32ccb0dcdd5fb72f797a5466a7baa287eaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06328",
    "kind": "arxiv",
    "version": 1
  }
}