Pith Number

pith:WFXB7SWS

pith:2009:WFXB7SWSE34O6JXB7GI5OVK4IB

not attested not anchored not stored refs pending

Efficient generation and sorting of orbital angular momentum eigenmodes of light by thermally tuned q-plates

Bruno Piccirillo, Ebrahim Karimi, Eleonora Nagali, Enrico Santamato, Lorenzo Marrucci

arxiv:0905.0562 v1 · 2009-05-05 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFXB7SWSE34O6JXB7GI5OVK4IB}

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	2026-05-18T02:13:47.616412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b16e1fcad226f8ef26e1f991d7555c4049c644805edfa1d474aaa462cea49739

Aliases

arxiv: 0905.0562 · arxiv_version: 0905.0562v1 · doi: 10.48550/arxiv.0905.0562 · pith_short_12: WFXB7SWSE34O · pith_short_16: WFXB7SWSE34O6JXB · pith_short_8: WFXB7SWS

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/WFXB7SWSE34O6JXB7GI5OVK4IB \
  | 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: b16e1fcad226f8ef26e1f991d7555c4049c644805edfa1d474aaa462cea49739

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aafe4872829b627b371828c1b1884d1833c91098c4ebfc23c76b566e261d080",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-05-05T09:24:17Z",
    "title_canon_sha256": "dec807eb52f933e6d25e7f014808bb0323937ce60dabdc474b8635026c3411e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0562",
    "kind": "arxiv",
    "version": 1
  }
}