Pith Number

pith:S3BQR4JQ

pith:1998:S3BQR4JQ2VEGG5VKK4KKT5PFEZ

not attested not anchored not stored refs pending

The Evolutionary Design of Collective Computation in Cellular Automata

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

arxiv:adap-org/9809001 v1 · 1998-09-08 · adap-org · cond-mat.dis-nn · math.DS · nlin.AO · nlin.PS · patt-sol · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3BQR4JQ2VEGG5VKK4KKT5PFEZ}

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	2026-05-18T01:37:43.262934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c308f130d5486376aa5714a9f5e52679108e7ab503a4faa71e74679496740f

Aliases

arxiv: adap-org/9809001 · arxiv_version: adap-org/9809001v1 · doi: 10.48550/arxiv.adap-org/9809001 · pith_short_12: S3BQR4JQ2VEG · pith_short_16: S3BQR4JQ2VEGG5VK · pith_short_8: S3BQR4JQ

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/S3BQR4JQ2VEGG5VKK4KKT5PFEZ \
  | 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: 96c308f130d5486376aa5714a9f5e52679108e7ab503a4faa71e74679496740f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60cb7c890bf270aedcee04865cea2c42230ad57b81aea62905e3e4646db97894",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "math.DS",
      "nlin.AO",
      "nlin.PS",
      "patt-sol",
      "physics.bio-ph"
    ],
    "license": "",
    "primary_cat": "adap-org",
    "submitted_at": "1998-09-08T21:42:55Z",
    "title_canon_sha256": "c63ba887523250373b97b9307f12d4942cbec5a1c91ddd899dbe7966d44876fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "adap-org/9809001",
    "kind": "arxiv",
    "version": 1
  }
}