Pith Number

pith:W7SZ3ZXY

pith:2010:W7SZ3ZXYD6ICAGIU5OTLZP5IHP

not attested not anchored not stored refs pending

A Quantum Game of Life

Jonathan Grattage, Pablo Arrighi

arxiv:1010.3120 v2 · 2010-10-15 · quant-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{W7SZ3ZXYD6ICAGIU5OTLZP5IHP}

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	2026-05-18T00:36:36.027830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7e59de6f81f90201914eba6bcbfa83be66ee7ffaabfbbad2317f83f873da103

Aliases

arxiv: 1010.3120 · arxiv_version: 1010.3120v2 · doi: 10.48550/arxiv.1010.3120 · pith_short_12: W7SZ3ZXYD6IC · pith_short_16: W7SZ3ZXYD6ICAGIU · pith_short_8: W7SZ3ZXY

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/W7SZ3ZXYD6ICAGIU5OTLZP5IHP \
  | 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: b7e59de6f81f90201914eba6bcbfa83be66ee7ffaabfbbad2317f83f873da103

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84e3b9ebb91a13a792f3a0b980f57598a48333ffad4c0876e62b6e20aa828e9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-10-15T10:59:48Z",
    "title_canon_sha256": "e7a9316fb10a88f9e11d91c07045ec3b26dbbb4e6609a33c0fe5ec68f66694d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.3120",
    "kind": "arxiv",
    "version": 2
  }
}