Pith Number

pith:CKH7FL2G

pith:2019:CKH7FL2GTK6KOURVQSAYIFKF4O

not attested not anchored not stored refs pending

Quantum Cellular Automata, Black Hole Thermodynamics, and the Laws of Quantum Complexity

Jonathan Gorard, Ruhi Shah

arxiv:1910.00578 v1 · 2019-09-30 · 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{CKH7FL2GTK6KOURVQSAYIFKF4O}

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	2026-07-05T00:09:17.395637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

128ff2af469abca752358481841545e3b04e540be1bfa2e247bd223eaee914a6

Aliases

arxiv: 1910.00578 · arxiv_version: 1910.00578v1 · doi: 10.48550/arxiv.1910.00578 · pith_short_12: CKH7FL2GTK6K · pith_short_16: CKH7FL2GTK6KOURV · pith_short_8: CKH7FL2G

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/CKH7FL2GTK6KOURVQSAYIFKF4O \
  | 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: 128ff2af469abca752358481841545e3b04e540be1bfa2e247bd223eaee914a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b258eedeb8d7c08daf43b862ef3efdd26e7c258c5903bfd2c8590393c2c02616",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-09-30T19:39:30Z",
    "title_canon_sha256": "d42ecdffbf6a01689f8febc9a92d5bebaef403d6fad417734fee809f8d7469a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.00578",
    "kind": "arxiv",
    "version": 1
  }
}