Pith Number

pith:AEAFVC7V

pith:2016:AEAFVC7VMBZBQ7KHBD3TJJPSWF

not attested not anchored not stored refs pending

An information-based classification of Elementary Cellular Automata

Enrico Borriello, Sara Imari Walker

arxiv:1609.07554 v2 · 2016-09-24 · cs.CC · 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{AEAFVC7VMBZBQ7KHBD3TJJPSWF}

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	2026-05-18T00:49:51.685590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01005a8bf56072187d4708f734a5f2b155f239ccd54133caabbd1963a8d4ab3e

Aliases

arxiv: 1609.07554 · arxiv_version: 1609.07554v2 · doi: 10.48550/arxiv.1609.07554 · pith_short_12: AEAFVC7VMBZB · pith_short_16: AEAFVC7VMBZBQ7KH · pith_short_8: AEAFVC7V

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/AEAFVC7VMBZBQ7KHBD3TJJPSWF \
  | 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: 01005a8bf56072187d4708f734a5f2b155f239ccd54133caabbd1963a8d4ab3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a76ea35bde4fb1e05389c2ef172f67298e3d8884f3bdfcdaa2c66665c1bce79f",
    "cross_cats_sorted": [
      "nlin.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-09-24T02:17:44Z",
    "title_canon_sha256": "ebed6caa2326d2f2435b22a3140d0f43c6391fedc02dd9a80d6ecbcb5d1e900c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07554",
    "kind": "arxiv",
    "version": 2
  }
}