Pith Number

pith:OP4WVFJH

pith:2012:OP4WVFJHMEPGAMUFDACO6OWKAJ

not attested not anchored not stored refs pending

Mapping of focused Laguerre-Gauss beams: The interplay between spin and orbital angular momentum and its dependence on detector characteristics

Daniel Bloch (LPL), Jose Roberto Rios Leite, Martial Ducloy (LPL), Vasily V. Klimov

arxiv:1204.4326 v1 · 2012-04-19 · physics.atom-ph · physics.optics · 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{OP4WVFJHMEPGAMUFDACO6OWKAJ}

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	2026-05-18T03:57:26.369364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f96a9527611e6032851804ef3aca027395fe0bc5afc4ee668de025c6472d7d

Aliases

arxiv: 1204.4326 · arxiv_version: 1204.4326v1 · doi: 10.48550/arxiv.1204.4326 · pith_short_12: OP4WVFJHMEPG · pith_short_16: OP4WVFJHMEPGAMUF · pith_short_8: OP4WVFJH

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/OP4WVFJHMEPGAMUFDACO6OWKAJ \
  | 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: 73f96a9527611e6032851804ef3aca027395fe0bc5afc4ee668de025c6472d7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb9901daeca779adb6a357e571f5cfc78821562b4a7a30e64855ffa6587d1f8d",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-04-19T12:01:27Z",
    "title_canon_sha256": "aa650ff6734c67e6b2d0d058d055e9d0a0dec28cde48de4ffa3c1276e72c126e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4326",
    "kind": "arxiv",
    "version": 1
  }
}