Pith Number

pith:SMZ7ER7A

pith:2013:SMZ7ER7AIQZU7LY5ZINYNYAIBF

not attested not anchored not stored refs pending

Causal Fermions in Discrete Spacetime

Anthony J. Short, Terence C. Farrelly

arxiv:1303.4652 v1 · 2013-03-19 · quant-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMZ7ER7AIQZU7LY5ZINYNYAIBF}

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.

Cited by

1 paper in Pith

Causal Decompositions of 1D Quantum Cellular Automata

Receipt and verification

First computed	2026-05-18T03:03:10.144519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9333f247e044334faf1dca1b86e008097bd91910bddb71077182fd451ff43e03

Aliases

arxiv: 1303.4652 · arxiv_version: 1303.4652v1 · doi: 10.48550/arxiv.1303.4652 · pith_short_12: SMZ7ER7AIQZU · pith_short_16: SMZ7ER7AIQZU7LY5 · pith_short_8: SMZ7ER7A

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/SMZ7ER7AIQZU7LY5ZINYNYAIBF \
  | 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: 9333f247e044334faf1dca1b86e008097bd91910bddb71077182fd451ff43e03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4019421514fb54d2a4590a2ec72a2a7e627e53ab1c3d92963a41dd50af236b95",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-19T16:23:29Z",
    "title_canon_sha256": "d1d98620fbc2f3435e3941c27860c8d94729d0c65546c8256cb7a3fdd222de4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4652",
    "kind": "arxiv",
    "version": 1
  }
}