Pith Number

pith:SWM6C6UE

pith:2012:SWM6C6UEI6ELIEVI5QTAIFEFWQ

not attested not anchored not stored refs pending

Performance of a 229 Thorium solid-state nuclear clock

A. N. Litvinov, A. V. Romanenko, G. A. Kazakov, G. Winkler, L. P. Yatsenko, M. Schreitl, T. Schumm, V. I. Romanenko

arxiv:1204.3268 v3 · 2012-04-15 · physics.atom-ph · physics.optics · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SWM6C6UEI6ELIEVI5QTAIFEFWQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

Towards theory constraints on ultralight dark matter from quantum gravity

Receipt and verification

First computed	2026-05-18T03:44:15.284189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9599e17a844788b412a8ec26041485b40f2ec43b00c17415526ffc30f59388eb

Aliases

arxiv: 1204.3268 · arxiv_version: 1204.3268v3 · doi: 10.48550/arxiv.1204.3268 · pith_short_12: SWM6C6UEI6EL · pith_short_16: SWM6C6UEI6ELIEVI · pith_short_8: SWM6C6UE

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/SWM6C6UEI6ELIEVI5QTAIFEFWQ \
  | 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: 9599e17a844788b412a8ec26041485b40f2ec43b00c17415526ffc30f59388eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2613bf440d183391a80599addad528c10055c4b160e3dc5552009bc32c8af0e",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-04-15T13:34:05Z",
    "title_canon_sha256": "eb59ee484f7b956a0f78ef9bb5eca54640bfac5851098925c57c8744806f60c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3268",
    "kind": "arxiv",
    "version": 3
  }
}