Pith Number

pith:NN6CAMKI

pith:2011:NN6CAMKIRKOSEDKBGE7AYRTOGV

not attested not anchored not stored refs pending

Radio beam vorticity and orbital angular momentum

Bo Thid\'e, Cesare Barbieri, Elettra Mari, Fabrizio Tamburini, Filippo Romanato

arxiv:1101.6015 v1 · 2011-01-31 · astro-ph.IM · physics.class-ph · physics.optics · physics.space-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{NN6CAMKIRKOSEDKBGE7AYRTOGV}

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	2026-05-18T04:30:24.439172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b7c2031488a9d220d41313e0c466e356c029ae4084499540fece8b1f18eb729

Aliases

arxiv: 1101.6015 · arxiv_version: 1101.6015v1 · doi: 10.48550/arxiv.1101.6015 · pith_short_12: NN6CAMKIRKOS · pith_short_16: NN6CAMKIRKOSEDKB · pith_short_8: NN6CAMKI

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/NN6CAMKIRKOSEDKBGE7AYRTOGV \
  | 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: 6b7c2031488a9d220d41313e0c466e356c029ae4084499540fece8b1f18eb729

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03551c31ad70f2fffb2e1a60b13188ec1839bd516f213329053a9315e8eea841",
    "cross_cats_sorted": [
      "physics.class-ph",
      "physics.optics",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-01-31T16:45:27Z",
    "title_canon_sha256": "194285c4d667add57e701688ff01ff63693dfc206f8ad332458263f36f939dde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.6015",
    "kind": "arxiv",
    "version": 1
  }
}