Pith Number

pith:GWMJNSI2

pith:2004:GWMJNSI25FQZMVQSO2K7GML6KV

not attested not anchored not stored refs pending

Negativity of the Wigner function as an indicator of nonclassicality

Anatole Kenfack, Karol Zyczkowski

arxiv:quant-ph/0406015 v1 · 2004-06-02 · 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{GWMJNSI25FQZMVQSO2K7GML6KV}

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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

Weighted Phase-Space Paths for Exact Wigner Dynamics

Receipt and verification

First computed	2026-07-04T16:50:18.837465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

359896c91ae9619656127695f3317e55779ff0413b2d5cafb6f9837d6c547489

Aliases

arxiv: quant-ph/0406015 · arxiv_version: quant-ph/0406015v1 · doi: 10.48550/arxiv.quant-ph/0406015 · pith_short_12: GWMJNSI25FQZ · pith_short_16: GWMJNSI25FQZMVQS · pith_short_8: GWMJNSI2

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/GWMJNSI25FQZMVQSO2K7GML6KV \
  | 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: 359896c91ae9619656127695f3317e55779ff0413b2d5cafb6f9837d6c547489

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b84ea6e5b46c279307aa5574d06c77829fb3343497ba25c57fcdd37bf191a465",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-06-02T07:44:29Z",
    "title_canon_sha256": "03b28d22b443172663789b883e80da600ec20a647a195e9c6ac7f62b0251026a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0406015",
    "kind": "arxiv",
    "version": 1
  }
}