Pith Number

pith:ZD6TBO5N

pith:2015:ZD6TBO5NPZ66YD3XY66MTKLV3L

not attested not anchored not stored refs pending

Solving two-dimensional density classification problem with two probabilistic cellular automata

Henryk Fuk\'s

arxiv:1506.06653 v2 · 2015-06-22 · 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{ZD6TBO5NPZ66YD3XY66MTKLV3L}

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	2026-05-18T01:20:29.505615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8fd30bbad7e7dec0f77c7bcc9a975dac45ed38acdb1ab0209596aa8eefee3d7

Aliases

arxiv: 1506.06653 · arxiv_version: 1506.06653v2 · doi: 10.48550/arxiv.1506.06653 · pith_short_12: ZD6TBO5NPZ66 · pith_short_16: ZD6TBO5NPZ66YD3X · pith_short_8: ZD6TBO5N

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/ZD6TBO5NPZ66YD3XY66MTKLV3L \
  | 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: c8fd30bbad7e7dec0f77c7bcc9a975dac45ed38acdb1ab0209596aa8eefee3d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69e73c8bfb33e570b2f0d3d6d5d4a7e66a2f15c5e9dfe4ced4261ef1af7de44f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2015-06-22T15:35:51Z",
    "title_canon_sha256": "4737d9d46b0d318415be2fc595fa78a2a0d249e53ae0c68e587a6cac96685763"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06653",
    "kind": "arxiv",
    "version": 2
  }
}