Pith Number

pith:HLAAM4WU

pith:2026:HLAAM4WUKMCP2AVNQC5OBMFSQK

not attested not anchored not stored refs pending

A nuclear clock based on $^{229}$Th

Beichen Huang, Binkun Lu, Chao Yan, Chengchun Zhao, Gaowei Yan, Gleb Penyazkov, Haochen Tian, Haoyu Shi, Jun Lin, Juxian Li, Liangbi Su, Lingfeng Yan, Lin Li, Li You, Longsheng Ma, Ningyuan Ma, Peixiong Zhang, Qiange He, Qiaorui Gong, Qi Xiao, Shanming Li, Shining Zhu, Shiqian Ding, Taoxiang Sun, Wenhao Bu, Xiangliang Li, Xiaobo Qian, Xibo Zhang, Xuegang Liu, Yanzhang Wu, Yige Lin, Yin Hang, Yuefei Wang, Yuxiang Li, Yuxiang Mo, Zhenhai Zhan, Zhen Zhang, Zhi-Ang Chen

arxiv:2606.08870 v1 · 2026-06-07 · physics.atom-ph · quant-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{HLAAM4WUKMCP2AVNQC5OBMFSQK}

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	2026-06-09T02:07:44.378112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ac00672d45304fd02ad80bae0b0b2828e807577a286acda0210687e08a1952d

Aliases

arxiv: 2606.08870 · arxiv_version: 2606.08870v1 · doi: 10.48550/arxiv.2606.08870 · pith_short_12: HLAAM4WUKMCP · pith_short_16: HLAAM4WUKMCP2AVN · pith_short_8: HLAAM4WU

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/HLAAM4WUKMCP2AVNQC5OBMFSQK \
  | 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: 3ac00672d45304fd02ad80bae0b0b2828e807577a286acda0210687e08a1952d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019d677a92f0e7d14b4119b91a3d943e0bd8f7249efe392ea678ad5c7d330155",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2026-06-07T22:53:15Z",
    "title_canon_sha256": "df46b8f8e05b4faafc99e6308120b144418f2083a5376b784b4ac241736ec4ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.08870",
    "kind": "arxiv",
    "version": 1
  }
}