Pith Number

pith:QOXRQY3X

pith:2018:QOXRQY3XQAJEENW2BRWGKNZQRL

not attested not anchored not stored refs pending

RF photonic delay lines using space-division multiplexing

Ivana Gasulla, Sergi Garcia

arxiv:1810.12173 v1 · 2018-10-29 · eess.SP · physics.app-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{QOXRQY3XQAJEENW2BRWGKNZQRL}

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	2026-05-18T00:02:04.043414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83af18637780124236da0c6c6537308afa066e69da7f74a487664362b0867c84

Aliases

arxiv: 1810.12173 · arxiv_version: 1810.12173v1 · doi: 10.48550/arxiv.1810.12173 · pith_short_12: QOXRQY3XQAJE · pith_short_16: QOXRQY3XQAJEENW2 · pith_short_8: QOXRQY3X

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/QOXRQY3XQAJEENW2BRWGKNZQRL \
  | 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: 83af18637780124236da0c6c6537308afa066e69da7f74a487664362b0867c84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef17607cd086a560543d9e71ff0d52ae33e29e8c03d5667644f4bbf69eb70557",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-10-29T14:59:01Z",
    "title_canon_sha256": "176fdc829db385ad10d1a8d60e47f2d1f4fdcb87c30ca956963c9f308087f24f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12173",
    "kind": "arxiv",
    "version": 1
  }
}