Pith Number

pith:SSPQEYN2

pith:2018:SSPQEYN2HJ5JRU7FLUO7DA2HZL

not attested not anchored not stored refs pending

Cellular Automata on Racks

Muhammad Khuram Shahzad, Naqeeb ur Rehman

arxiv:1807.11630 v1 · 2018-07-30 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SSPQEYN2HJ5JRU7FLUO7DA2HZL}

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	2026-05-18T00:09:21.560658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

949f0261ba3a7a98d3e55d1df18347caf2982a79f6229301b6f8c7a3e0a4d12c

Aliases

arxiv: 1807.11630 · arxiv_version: 1807.11630v1 · doi: 10.48550/arxiv.1807.11630 · pith_short_12: SSPQEYN2HJ5J · pith_short_16: SSPQEYN2HJ5JRU7F · pith_short_8: SSPQEYN2

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/SSPQEYN2HJ5JRU7FLUO7DA2HZL \
  | 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: 949f0261ba3a7a98d3e55d1df18347caf2982a79f6229301b6f8c7a3e0a4d12c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ccd83e2fd40eeed5404ae398670a7634fe7a8b0ba50e5e00546df500bb97ebf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-07-30T04:46:42Z",
    "title_canon_sha256": "462e6648c917c42cefc340e63c19f3e827a80fbcb7f1a863d0af20b717aa1ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11630",
    "kind": "arxiv",
    "version": 1
  }
}