Pith Number

pith:MDY7SJHU

pith:2011:MDY7SJHUPFXJ3XSBMPZZZHY6AQ

not attested not anchored not stored refs pending

Response Curves and Preimage Sequences of Two-Dimensional Cellular Automata

Andrew Skelton, Henryk Fuk\'s

arxiv:1108.1559 v1 · 2011-08-07 · 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{MDY7SJHUPFXJ3XSBMPZZZHY6AQ}

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	2026-05-18T04:16:00.732929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60f1f924f4796e9dde4163f39c9f1e040abc5b8187144cf52eb6c403e4ad40b0

Aliases

arxiv: 1108.1559 · arxiv_version: 1108.1559v1 · doi: 10.48550/arxiv.1108.1559 · pith_short_12: MDY7SJHUPFXJ · pith_short_16: MDY7SJHUPFXJ3XSB · pith_short_8: MDY7SJHU

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/MDY7SJHUPFXJ3XSBMPZZZHY6AQ \
  | 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: 60f1f924f4796e9dde4163f39c9f1e040abc5b8187144cf52eb6c403e4ad40b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bba8fe061af52f6ce308d50af45bdeb22b69664eb3a873f62ff1f1f974af6a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2011-08-07T17:54:38Z",
    "title_canon_sha256": "72d1351b414b5ed01d25618adc3cdd9e428f4d00579d81dbbafe1b71405bdc18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1559",
    "kind": "arxiv",
    "version": 1
  }
}