Pith Number

pith:NZJ3LXUW

pith:2007:NZJ3LXUWTEWAYQ4BCIIODZIEIS

not attested not anchored not stored refs pending

Optimal spin squeezing inequalities detect bound entanglement in spin models

Christian Knapp, Geza Toth, Hans J. Briegel, Otfried G\"uhne

arxiv:quant-ph/0702219 v5 · 2007-02-26 · quant-ph · cond-mat.other · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZJ3LXUWTEWAYQ4BCIIODZIEIS}

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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

Entanglement Certification $-$ From Theory to Experiment

Receipt and verification

First computed	2026-05-18T04:08:45.564452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e53b5de96992c0c43811210e1e50444b05359add047fc886f52e9b7fda46f0d

Aliases

arxiv: quant-ph/0702219 · arxiv_version: quant-ph/0702219v5 · doi: 10.48550/arxiv.quant-ph/0702219 · pith_short_12: NZJ3LXUWTEWA · pith_short_16: NZJ3LXUWTEWAYQ4B · pith_short_8: NZJ3LXUW

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/NZJ3LXUWTEWAYQ4BCIIODZIEIS \
  | 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: 6e53b5de96992c0c43811210e1e50444b05359add047fc886f52e9b7fda46f0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f0d248e0bb16aa1601139f9560d8629bfb43a49b9c2cef4a88b1cd0e7707317",
    "cross_cats_sorted": [
      "cond-mat.other",
      "cond-mat.stat-mech"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-26T20:20:59Z",
    "title_canon_sha256": "b609a2b6f42988f61b0699c16e0955e62c882518772eeef5aa8abf482cb3d4aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702219",
    "kind": "arxiv",
    "version": 5
  }
}