Pith Number

pith:Y5SITCGG

pith:2011:Y5SITCGGRH2HXIMZGDN44WDE7K

not attested not anchored not stored refs pending

Discriminating between the von Neumann and L\"uders reduction rule

G. C. Hegerfeldt, R. Sala Mayato

arxiv:1111.1088 v2 · 2011-11-04 · 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{Y5SITCGGRH2HXIMZGDN44WDE7K}

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	2026-05-18T03:59:36.509142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7648988c689f47ba19930dbce5864fa9133eeeeb6c8b0964402c785c97a1ebd

Aliases

arxiv: 1111.1088 · arxiv_version: 1111.1088v2 · doi: 10.48550/arxiv.1111.1088 · pith_short_12: Y5SITCGGRH2H · pith_short_16: Y5SITCGGRH2HXIMZ · pith_short_8: Y5SITCGG

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/Y5SITCGGRH2HXIMZGDN44WDE7K \
  | 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: c7648988c689f47ba19930dbce5864fa9133eeeeb6c8b0964402c785c97a1ebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2b1c569749ebae82bdb36b2a0e49a12b147dae69f723eefe32c2bc153e95728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-11-04T10:35:05Z",
    "title_canon_sha256": "a80d05dbc24f164f1a1c2511530cbe91a418bf7d4f362095aff60973356e632f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1088",
    "kind": "arxiv",
    "version": 2
  }
}