Pith Number

pith:QC6VM2UR

pith:2009:QC6VM2URXS3HOZXWMMPGBYL23J

not attested not anchored not stored refs pending

Intrinsically universal n-dimensional quantum cellular automata

Jonathan Grattage, Pablo Arrighi

arxiv:0907.3827 v2 · 2009-07-22 · 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{QC6VM2URXS3HOZXWMMPGBYL23J}

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	2026-05-18T04:39:27.825931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80bd566a91bcb67766f6631e60e17ada76abf12d31da5fb27516827e14e77281

Aliases

arxiv: 0907.3827 · arxiv_version: 0907.3827v2 · doi: 10.48550/arxiv.0907.3827 · pith_short_12: QC6VM2URXS3H · pith_short_16: QC6VM2URXS3HOZXW · pith_short_8: QC6VM2UR

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/QC6VM2URXS3HOZXWMMPGBYL23J \
  | 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: 80bd566a91bcb67766f6631e60e17ada76abf12d31da5fb27516827e14e77281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e3ce8f3d08e4ec0a118c3be0833307ce007394ebc5e36f3e721a425bd423ef5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-22T12:53:17Z",
    "title_canon_sha256": "788a64c04e7976b4d2fcf92e262ac42b8ce111d26829399f1df605d6a327c926"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3827",
    "kind": "arxiv",
    "version": 2
  }
}