Pith Number

pith:B6SUHEKM

pith:2019:B6SUHEKM5CT3DESEIBL4XF5HTY

not attested not anchored not stored refs pending

X-ray pumping of the Th-229 nuclear clock isomer

Akihiro Yoshimi, Akira Fujieda, Atsushi Yamaguchi, Hideaki Hara, Hiromitsu Haba, Hiroyuki Fujimoto, Hiroyuki Kaino, Kenji Konashi, Kenji Tamasaku, Kenta Suzuki, Koichi Okai, Koji Yoshimura, Makoto Seto, Makoto Watanabe, Motohiko Yoshimura, Noboru Sasao, Satoshi Uetake, Shinji Kitao, Sho Okubo, Simon Stellmer, Takahiko Masuda, Takahiro Hiraki, Takuya Yokokita, Thorsten Schumm, Tsukasa Watanabe, Yoshitaka Kasamatsu, Yoshitaka Yoda, Yudai Shigekawa, Yuki Miyamoto, Yuki Yasuda

arxiv:1902.04823 v1 · 2019-02-13 · nucl-ex · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6SUHEKM5CT3DESEIBL4XF5HTY}

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	2026-07-05T00:10:33.753280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fa543914ce8a7b192444057cb97a79e2978575f732cd50ca264e19a4577674f

Aliases

arxiv: 1902.04823 · arxiv_version: 1902.04823v1 · doi: 10.48550/arxiv.1902.04823 · pith_short_12: B6SUHEKM5CT3 · pith_short_16: B6SUHEKM5CT3DESE · pith_short_8: B6SUHEKM

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/B6SUHEKM5CT3DESEIBL4XF5HTY \
  | 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: 0fa543914ce8a7b192444057cb97a79e2978575f732cd50ca264e19a4577674f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c889b1983bb181bd9028672bc1ff09a764603ef28739a0a0af5fa77960fb95",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2019-02-13T09:58:46Z",
    "title_canon_sha256": "83079851a28b3bca1c79a1a95e3371caa84529904a89c727576eb9ce61ed9a9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04823",
    "kind": "arxiv",
    "version": 1
  }
}