Pith Number

pith:2THP5O2J

pith:2012:2THP5O2JG4CXLNO4I5F3NBWAYF

not attested not anchored not stored refs pending

Expressiveness of Elementary Cellular Automata

Andrew Adamatzky, Genaro J. Mart\'inez, Markus Redeker

arxiv:1212.2846 v2 · 2012-12-12 · 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{2THP5O2JG4CXLNO4I5F3NBWAYF}

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	2026-05-18T03:28:45.762535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4cefebb49370575b5dc474bb686c0c1626569db9cf9daa3286d507067dc89cf

Aliases

arxiv: 1212.2846 · arxiv_version: 1212.2846v2 · doi: 10.48550/arxiv.1212.2846 · pith_short_12: 2THP5O2JG4CX · pith_short_16: 2THP5O2JG4CXLNO4 · pith_short_8: 2THP5O2J

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/2THP5O2JG4CXLNO4I5F3NBWAYF \
  | 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: d4cefebb49370575b5dc474bb686c0c1626569db9cf9daa3286d507067dc89cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "268df7ebee488ab66f039fdf173b2827e084f14eaf5d85b69f7feb6483f06193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2012-12-12T15:41:29Z",
    "title_canon_sha256": "571c380a6cb0a28ceaac8118684c6a7dbe614c0bf1b6fa0ccb2cfa1b44083028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2846",
    "kind": "arxiv",
    "version": 2
  }
}