pith. sign in
Pith Number

pith:SDOVPTP7

pith:2018:SDOVPTP73ZDFGTDHAKXKN54CR2
not attested not anchored not stored refs pending

Bessel beams revisited: a generalized scheme to derive optical vortices

C. T. Schmiegelow, D. E. Reiter, G. F. Quinteiro, T. Kuhn

arxiv:1808.00390 v1 · 2018-08-01 · physics.optics

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{SDOVPTP73ZDFGTDHAKXKN54CR2}

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 2026-05-17T23:52:05.639387Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

90dd57cdffde46534c6702aea6f7828e9e54dfcbe1a6fa7f3b655143e194b7b1

Aliases

arxiv: 1808.00390 · arxiv_version: 1808.00390v1 · doi: 10.48550/arxiv.1808.00390 · pith_short_12: SDOVPTP73ZDF · pith_short_16: SDOVPTP73ZDFGTDH · pith_short_8: SDOVPTP7
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/SDOVPTP73ZDFGTDHAKXKN54CR2 \
  | 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: 90dd57cdffde46534c6702aea6f7828e9e54dfcbe1a6fa7f3b655143e194b7b1
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "9084d73a0c54f94ee1f7a51c2100ac988754159564da6eede320ba3f12c69855",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-08-01T15:55:50Z",
    "title_canon_sha256": "748c377f9347bef9f52e62398dc28fff083037997da74219b47c9c5b7b85a1ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00390",
    "kind": "arxiv",
    "version": 1
  }
}