Pith Number

pith:GJ7J4MRH

pith:2012:GJ7J4MRH2I5YIOE6XIWWLPQI7V

not attested not anchored not stored refs pending

Estimating entanglement monotones with a generalization of the Wootters formula

Otfried G\"uhne, Simone Severini, Zhi-Hao Ma, Zhi-Hua Chen

arxiv:1207.2889 v2 · 2012-07-12 · 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{GJ7J4MRH2I5YIOE6XIWWLPQI7V}

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	2026-05-18T03:40:36.059410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

327e9e3227d23b84389eba2d65be08fd57b9a8a9a4b2773d36c9df5df383ca2c

Aliases

arxiv: 1207.2889 · arxiv_version: 1207.2889v2 · doi: 10.48550/arxiv.1207.2889 · pith_short_12: GJ7J4MRH2I5Y · pith_short_16: GJ7J4MRH2I5YIOE6 · pith_short_8: GJ7J4MRH

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/GJ7J4MRH2I5YIOE6XIWWLPQI7V \
  | 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: 327e9e3227d23b84389eba2d65be08fd57b9a8a9a4b2773d36c9df5df383ca2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dd58e2ee1be8b1f880a854761ebdf489347c71e999422b0e1f468934eabc3ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-12T09:25:18Z",
    "title_canon_sha256": "072d71804dde0d26142a3680631ac751369ddc32f995aeb6a95112780395bb89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2889",
    "kind": "arxiv",
    "version": 2
  }
}