Pith Number

pith:5AYWAIPF

pith:2012:5AYWAIPFKVOSQJ3O33ZPPKQSEV

not attested not anchored not stored refs pending

Boundary growth in one-dimensional cellular automata

Charles D. Brummitt, Eric Rowland

arxiv:1204.2172 v2 · 2012-04-10 · nlin.CG · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5AYWAIPFKVOSQJ3O33ZPPKQSEV}

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	2026-05-18T02:25:10.947335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8316021e5555d28276edef2f7aa12255095f06068d79d16b1cc657a7c98fbd8

Aliases

arxiv: 1204.2172 · arxiv_version: 1204.2172v2 · doi: 10.48550/arxiv.1204.2172 · pith_short_12: 5AYWAIPFKVOS · pith_short_16: 5AYWAIPFKVOSQJ3O · pith_short_8: 5AYWAIPF

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/5AYWAIPFKVOSQJ3O33ZPPKQSEV \
  | 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: e8316021e5555d28276edef2f7aa12255095f06068d79d16b1cc657a7c98fbd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "721a276806937e3211eed8e1e669ce825b9f78c13bff673f49e48869b71a38d9",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2012-04-10T14:58:02Z",
    "title_canon_sha256": "952ccfd7fc28a2aff2d524879c72f60b91513997fb802e9da23a7898b7349a38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2172",
    "kind": "arxiv",
    "version": 2
  }
}