Pith Number

pith:BDCIBOQF

pith:2020:BDCIBOQF4S6XEIYPDYYEGD2Y5E

not attested not anchored not stored refs pending

Gauge-invariance in cellular automata

Giuseppe Di Molfetta, Nathana\"el Eon, Pablo Arrighi

arxiv:2004.03656 v2 · 2020-04-07 · cs.FL · nlin.CG · 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{BDCIBOQF4S6XEIYPDYYEGD2Y5E}

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	2026-07-05T03:50:46.074181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08c480ba05e4bd72230f1e30430f58e92c6c6dc947496453045d2135261fa1e5

Aliases

arxiv: 2004.03656 · arxiv_version: 2004.03656v2 · doi: 10.48550/arxiv.2004.03656 · pith_short_12: BDCIBOQF4S6X · pith_short_16: BDCIBOQF4S6XEIYP · pith_short_8: BDCIBOQF

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/BDCIBOQF4S6XEIYPDYYEGD2Y5E \
  | 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: 08c480ba05e4bd72230f1e30430f58e92c6c6dc947496453045d2135261fa1e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c865bfb9bbd87958deb16ac8b4f88e1be71d8c52ab95b567d33893b0b70b6194",
    "cross_cats_sorted": [
      "nlin.CG",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2020-04-07T19:20:26Z",
    "title_canon_sha256": "dd415b23fec54c93633dcc3a0fc9b25db968c390bffb91001d85f7da6b41d314"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.03656",
    "kind": "arxiv",
    "version": 2
  }
}