Pith Number

pith:FYNR4YFC

pith:2002:FYNR4YFCBTKJS77ZLHTG6LCI2J

not attested not anchored not stored refs pending

On classical models of spin

Marek Czachor

arxiv:quant-ph/0205010 v1 · 2002-05-02 · 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{FYNR4YFCBTKJS77ZLHTG6LCI2J}

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	2026-05-18T01:38:01.938418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e1b1e60a20cd4997ff959e66f2c48d27f0aeb6b5ecd67a3a7808bd9caa72f99

Aliases

arxiv: quant-ph/0205010 · arxiv_version: quant-ph/0205010v1 · doi: 10.48550/arxiv.quant-ph/0205010 · pith_short_12: FYNR4YFCBTKJ · pith_short_16: FYNR4YFCBTKJS77Z · pith_short_8: FYNR4YFC

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/FYNR4YFCBTKJS77ZLHTG6LCI2J \
  | 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: 2e1b1e60a20cd4997ff959e66f2c48d27f0aeb6b5ecd67a3a7808bd9caa72f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9325860241909f2674d1e548668c37abeb584e08d564e741d9f94a616cb33ccc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-02T10:46:03Z",
    "title_canon_sha256": "ed61cd2b650a15015ad8ac22c934e69da2d41382052fa1c2c552c20c1566c823"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205010",
    "kind": "arxiv",
    "version": 1
  }
}