Pith Number

pith:Z7GPZ643

pith:2009:Z7GPZ643AB6MFKLJD6XZAYCFLO

not attested not anchored not stored refs pending

Bell-like inequality for spin-orbit separability of a classical laser beam

A. Z. Khoury, C. V. S. Borges, J. A. O. Huguenin, M. Hor-Meyll

arxiv:0911.2440 v1 · 2009-11-12 · 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{Z7GPZ643AB6MFKLJD6XZAYCFLO}

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	2026-05-18T04:18:45.151405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfccfcfb9b007cc2a9691faf9060455ba75bd22ceb3cb9832c450b72d71c4449

Aliases

arxiv: 0911.2440 · arxiv_version: 0911.2440v1 · doi: 10.48550/arxiv.0911.2440 · pith_short_12: Z7GPZ643AB6M · pith_short_16: Z7GPZ643AB6MFKLJ · pith_short_8: Z7GPZ643

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/Z7GPZ643AB6MFKLJD6XZAYCFLO \
  | 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: cfccfcfb9b007cc2a9691faf9060455ba75bd22ceb3cb9832c450b72d71c4449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c7b9d1c979d8d77d6f6bec28bc5f329e0aa5684e90e136245939df535b6a904",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-11-12T18:18:30Z",
    "title_canon_sha256": "3be9228c3ed19c0c79c14d047245256d92c4c60abbfafe61e20025fb045cb177"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2440",
    "kind": "arxiv",
    "version": 1
  }
}