Pith Number

pith:7R6IKPL3

pith:2025:7R6IKPL3JYSXIW3S6XVL3PL5BP

not attested not anchored not stored refs pending

Low-loss thin-film periodically poled lithium niobate waveguides fabricated by femtosecond laser photolithography

Chuntao Li, Guanghui Zhao, Jianglin Guan, Jintian Lin, Lingling Qiao, Minghui Li, Min Wang, Qifeng Hou, Renhong Gao, Xiaochao Luo, Xinzhi Zheng, Ya Cheng, Yingnuo Qiu

arxiv:2504.14950 v3 · 2025-04-21 · 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{7R6IKPL3JYSXIW3S6XVL3PL5BP}

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	2026-07-05T10:56:17.651837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc7c853d7b4e25745b72f5eabdbd7d0bfe9d495605bace3c959a090854cebaf1

Aliases

arxiv: 2504.14950 · arxiv_version: 2504.14950v3 · doi: 10.48550/arxiv.2504.14950 · pith_short_12: 7R6IKPL3JYSX · pith_short_16: 7R6IKPL3JYSXIW3S · pith_short_8: 7R6IKPL3

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/7R6IKPL3JYSXIW3S6XVL3PL5BP \
  | 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: fc7c853d7b4e25745b72f5eabdbd7d0bfe9d495605bace3c959a090854cebaf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b83f1dae537fd4376209fc850d57e74d9ac49d1715db363ed33c1b9ce4067a7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-04-21T08:16:41Z",
    "title_canon_sha256": "ce5e3470814e0ebac3f521804edae35d9fb5ab3ba2623651ab829bd0fa941658"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.14950",
    "kind": "arxiv",
    "version": 3
  }
}