Pith Number

pith:QSJPWLWK

pith:2020:QSJPWLWKXK3TSMHPSFQE7KOYFW

not attested not anchored not stored refs pending

Low-threshold topological nanolasers based on second-order corner state

Can Wang, Haiqiao Ni, Huiming Hao, Jianchen Dang, Kuijuan Jin, Shan Xiao, Shushu Shi, Weixuan Zhang, Xiangdong Zhang, Xin Xie, Xiulai Xu, Zhichuan Niu

arxiv:2002.06513 v2 · 2020-02-16 · 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{QSJPWLWKXK3TSMHPSFQE7KOYFW}

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	2026-07-05T01:14:37.714211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8492fb2ecabab73930ef91604fa9d82da00cfd320b686609ccf166562e69f626

Aliases

arxiv: 2002.06513 · arxiv_version: 2002.06513v2 · doi: 10.48550/arxiv.2002.06513 · pith_short_12: QSJPWLWKXK3T · pith_short_16: QSJPWLWKXK3TSMHP · pith_short_8: QSJPWLWK

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/QSJPWLWKXK3TSMHPSFQE7KOYFW \
  | 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: 8492fb2ecabab73930ef91604fa9d82da00cfd320b686609ccf166562e69f626

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95e9de81c2c4ae66ab46f8ede160bf4dfe0aaf8725e54522344e537bc1938965",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-02-16T05:57:27Z",
    "title_canon_sha256": "ac05e7bf1b6b4e04fb270f483adb0d221283980195d52e636b631626bf533c6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.06513",
    "kind": "arxiv",
    "version": 2
  }
}