Pith Number

pith:F67JOBKQ

pith:2009:F67JOBKQK7Q73E44X5LPLWSPE2

not attested not anchored not stored refs pending

Operating binary strings using gliders and eaters in reaction-diffusion cellular automaton

Andrew Adamatzky, Andrew Wuensche, Genaro Martinez, Liang Zhang

arxiv:0908.0853 v1 · 2009-08-06 · 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{F67JOBKQK7Q73E44X5LPLWSPE2}

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	2026-05-18T04:35:05.307136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fbe97055057e1fd939cbf56f5da4f26956cbadc97373af497aac90391aa2f2d

Aliases

arxiv: 0908.0853 · arxiv_version: 0908.0853v1 · doi: 10.48550/arxiv.0908.0853 · pith_short_12: F67JOBKQK7Q7 · pith_short_16: F67JOBKQK7Q73E44 · pith_short_8: F67JOBKQ

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/F67JOBKQK7Q73E44X5LPLWSPE2 \
  | 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: 2fbe97055057e1fd939cbf56f5da4f26956cbadc97373af497aac90391aa2f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e87297fed3c41fe808eb6cb03b4d9710e94444f79476156b40be7d81a6389083",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2009-08-06T12:42:05Z",
    "title_canon_sha256": "494c391d93a6cd58c6d9680af52a4302397a4e4c74da11e35fc6c37d490224ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0853",
    "kind": "arxiv",
    "version": 1
  }
}