Pith Number

pith:H2QYFXRJ

pith:2000:H2QYFXRJ75DIBSNDXUZNS7CODH

not attested not anchored not stored refs pending

Entanglement Measures under Symmetry

K.G. H. Vollbrecht, R.F. Werner

arxiv:quant-ph/0010095 v2 · 2000-10-27 · 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{H2QYFXRJ75DIBSNDXUZNS7CODH}

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	2026-07-04T16:23:03.389572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ea182de29ff4680c9a3bd32d97c4e19de6037c926fd5904e22aa1e80b10314a

Aliases

arxiv: quant-ph/0010095 · arxiv_version: quant-ph/0010095v2 · doi: 10.48550/arxiv.quant-ph/0010095 · pith_short_12: H2QYFXRJ75DI · pith_short_16: H2QYFXRJ75DIBSND · pith_short_8: H2QYFXRJ

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/H2QYFXRJ75DIBSNDXUZNS7CODH \
  | 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: 3ea182de29ff4680c9a3bd32d97c4e19de6037c926fd5904e22aa1e80b10314a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28bec292449e0d076269ab5cf2249aa60ebb91c4ffcdd495c1121e849650dac4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-10-27T12:33:13Z",
    "title_canon_sha256": "f59bfd6035b70dc633d6a04d948b3a1697e4e8f9b94b4c1816f55b4598d49a1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0010095",
    "kind": "arxiv",
    "version": 2
  }
}