Pith Number

pith:SQGAP7J2

pith:2026:SQGAP7J2YHUCQQKTMWYURVTN3E

not attested not anchored not stored refs pending

Design and Fabrication of Coaxial Dual Core Optical Fiber Fan-in Device

Libo Yuan, Shitai Yang, Yuhong Ma

arxiv:2605.20307 v1 · 2026-05-19 · 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{SQGAP7J2YHUCQQKTMWYURVTN3E}

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	2026-05-21T00:04:24.680028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

940c07fd3ac1e828415365b148d66dd930c9ee929d23fbd8d8416fb05c5c003b

Aliases

arxiv: 2605.20307 · arxiv_version: 2605.20307v1 · doi: 10.48550/arxiv.2605.20307 · pith_short_12: SQGAP7J2YHUC · pith_short_16: SQGAP7J2YHUCQQKT · pith_short_8: SQGAP7J2

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/SQGAP7J2YHUCQQKTMWYURVTN3E \
  | 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: 940c07fd3ac1e828415365b148d66dd930c9ee929d23fbd8d8416fb05c5c003b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0180d4f52856158f24e5b097badcefbfe204eb03b9aa972747efaebdd3317876",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-19T16:09:29Z",
    "title_canon_sha256": "91f45ab5f931a8ea601540372eb7c409705ec99b82e7d35549f88f49e9d38447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20307",
    "kind": "arxiv",
    "version": 1
  }
}