Pith Number

pith:FKFVQHBP

pith:2018:FKFVQHBPKXLARLXNZUKZOPBUGD

not attested not anchored not stored refs pending

Superradiant scattering of orbital angular momentum beams

Cisco Gooding, Silke Weinfurtner, William G. Unruh

arxiv:1809.08235 v3 · 2018-09-21 · physics.class-ph · hep-ex · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FKFVQHBPKXLARLXNZUKZOPBUGD}

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	2026-07-05T04:05:08.950997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a8b581c2f55d608aeedcd15973c3430dc3484141fc31aa96eb96d8fc48ff95c

Aliases

arxiv: 1809.08235 · arxiv_version: 1809.08235v3 · doi: 10.48550/arxiv.1809.08235 · pith_short_12: FKFVQHBPKXLA · pith_short_16: FKFVQHBPKXLARLXN · pith_short_8: FKFVQHBP

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/FKFVQHBPKXLARLXNZUKZOPBUGD \
  | 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: 2a8b581c2f55d608aeedcd15973c3430dc3484141fc31aa96eb96d8fc48ff95c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7e75c857a20870ec390753db37b6ce5ba14940430e2203c125d19f72c903e21",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-09-21T15:04:55Z",
    "title_canon_sha256": "068fde6dbf820a72cc5c4bca621db7181308fa0c114a99b7dc6739e8ac706845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08235",
    "kind": "arxiv",
    "version": 3
  }
}