Pith Number

pith:URUB6IQ5

pith:2013:URUB6IQ5KDKKTZNBJ7I3JBTMH2

not attested not anchored not stored refs pending

Radiation from a semi-infinite unflanged cylindrical dielectric waveguide or optical fiber

B. U. Felderhof

arxiv:1309.7184 v1 · 2013-09-27 · 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{URUB6IQ5KDKKTZNBJ7I3JBTMH2}

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	2026-05-18T03:11:59.945368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4681f221d50d4a9e5a14fd1b4866c3eb064a25ae0ecebbab1ed3572efb49d21

Aliases

arxiv: 1309.7184 · arxiv_version: 1309.7184v1 · doi: 10.48550/arxiv.1309.7184 · pith_short_12: URUB6IQ5KDKK · pith_short_16: URUB6IQ5KDKKTZNB · pith_short_8: URUB6IQ5

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/URUB6IQ5KDKKTZNBJ7I3JBTMH2 \
  | 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: a4681f221d50d4a9e5a14fd1b4866c3eb064a25ae0ecebbab1ed3572efb49d21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89835de1b9adefc7b386e4abec04d6c002018297be966ad2ed49f4bcd550cdc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-09-27T09:57:45Z",
    "title_canon_sha256": "73e54ded4c93e5573c12fed58776edaa3f534831f280a38bde90b640c8083811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7184",
    "kind": "arxiv",
    "version": 1
  }
}