Pith Number

pith:4KFSB3XW

pith:2016:4KFSB3XWACRJEDVN7P55XYS4RS

not attested not anchored not stored refs pending

Measuring an electron beam's orbital angular momentum spectrum

Amir H. Tavabi, Ebrahim Karimi, Erfan Mafakheri, Federico Venturi, Fr\'ed\'eric Bouchard, Gian Carlo Gazzadi, Hugo Larocque, incenzo Grillo, Martin P. J. Lavery, Miles J. Padgett, Peng-Han Lu, Rafal E. Dunin-Borkowski, Roberto Balboni, Robert W. Boyd, Stefano Frabboni

arxiv:1609.09129 v1 · 2016-09-28 · quant-ph · 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{4KFSB3XWACRJEDVN7P55XYS4RS}

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	2026-05-18T01:03:40.183351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e28b20eef600a2920eadfbfbdbe25c8c8771cd95f16f038e8fdfb5e78ec53e0a

Aliases

arxiv: 1609.09129 · arxiv_version: 1609.09129v1 · doi: 10.48550/arxiv.1609.09129 · pith_short_12: 4KFSB3XWACRJ · pith_short_16: 4KFSB3XWACRJEDVN · pith_short_8: 4KFSB3XW

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/4KFSB3XWACRJEDVN7P55XYS4RS \
  | 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: e28b20eef600a2920eadfbfbdbe25c8c8771cd95f16f038e8fdfb5e78ec53e0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "821152f3b71c8035723a776727e329124c05cf3af8ace75f0f462db78920c4a5",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-09-28T21:49:35Z",
    "title_canon_sha256": "76dc770c602c81e2aa9a89d3fedf981fe076316a7d2cb5087a4727824736ef38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09129",
    "kind": "arxiv",
    "version": 1
  }
}