Pith Number

pith:SNV7CJ5T

pith:2025:SNV7CJ5TKA4DFJR4HLMXZPU2CI

not attested not anchored not stored refs pending

A continuous-wave vacuum ultraviolet laser for the nuclear clock

Beichen Huang, Bingkun Lu, Gaowei Yan, Gleb Penyazkov, Haochen Tian, Haoyu Shi, Jiatong Li, Juanlang Shi, Li You, Qi Xiao, Shiqian Ding, Tangyin Liao, Wenhao Bu, Xiangliang Li, Yige Lin, Yixuan Li, Yuxiang Mo

arxiv:2507.19449 v1 · 2025-07-25 · physics.atom-ph · 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{SNV7CJ5TKA4DFJR4HLMXZPU2CI}

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	2026-06-02T01:03:32.890020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

936bf127b3503832a63c3ad97cbe9a123bc19fb47c7a76b603349c4b85fc1139

Aliases

arxiv: 2507.19449 · arxiv_version: 2507.19449v1 · doi: 10.48550/arxiv.2507.19449 · pith_short_12: SNV7CJ5TKA4D · pith_short_16: SNV7CJ5TKA4DFJR4 · pith_short_8: SNV7CJ5T

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/SNV7CJ5TKA4DFJR4HLMXZPU2CI \
  | 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: 936bf127b3503832a63c3ad97cbe9a123bc19fb47c7a76b603349c4b85fc1139

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26b53c7b35264b53eecc5c6e98eb74f4ddc4a4989b8f4c0124e10212e85f9f5f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2025-07-25T17:32:13Z",
    "title_canon_sha256": "baf56755d215ccf9348af38c0a1923f10b929e241e4bd04676d307c0eda99270"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.19449",
    "kind": "arxiv",
    "version": 1
  }
}