Pith Number

pith:W5WV5ADE

pith:2001:W5WV5ADE4UYNP3FXKF42ILNUST

not attested not anchored not stored refs pending

Nonsequential positive-operator-valued measurements on entangled mixed states do not always violate a Bell inequality

Jonathan Barrett

arxiv:quant-ph/0107045 v2 · 2001-07-07 · 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{W5WV5ADE4UYNP3FXKF42ILNUST}

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.

Cited by

1 paper in Pith

Entanglement Certification $-$ From Theory to Experiment

Receipt and verification

First computed	2026-07-04T16:29:01.475708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b76d5e8064e530d7ecb75179a42db494e85cd2b19a9354632a7425089ac52a3e

Aliases

arxiv: quant-ph/0107045 · arxiv_version: quant-ph/0107045v2 · doi: 10.48550/arxiv.quant-ph/0107045 · pith_short_12: W5WV5ADE4UYN · pith_short_16: W5WV5ADE4UYNP3FX · pith_short_8: W5WV5ADE

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/W5WV5ADE4UYNP3FXKF42ILNUST \
  | 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: b76d5e8064e530d7ecb75179a42db494e85cd2b19a9354632a7425089ac52a3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab05e478ab6151a3498db8426703c30e00eaa8a49dc5aa393c4fa0014c99011a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-07-07T20:24:57Z",
    "title_canon_sha256": "c4a72ef45e387640708994586f5da41bf3de2ba5367b8519e724055ad2936137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0107045",
    "kind": "arxiv",
    "version": 2
  }
}