Pith Number

pith:2OI6TIJO

pith:2012:2OI6TIJOTNPQVFU36GT2RAQ7MJ

not attested not anchored not stored refs pending

Direct two-photon excitation of isomeric transition in thorium-229 nucleus

A. N. Litvinov, A. V. Romanenko, G. A. Kazakov, L. P. Yatsenko, V. I. Romanenko, Ye. G. Udoviskaya

arxiv:1211.5437 v1 · 2012-11-23 · 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{2OI6TIJOTNPQVFU36GT2RAQ7MJ}

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	2026-05-18T03:40:04.404567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d391e9a12e9b5f0a969bf1a7a8821f627700d41906b1f09868ea0afd8d7b5e60

Aliases

arxiv: 1211.5437 · arxiv_version: 1211.5437v1 · doi: 10.48550/arxiv.1211.5437 · pith_short_12: 2OI6TIJOTNPQ · pith_short_16: 2OI6TIJOTNPQVFU3 · pith_short_8: 2OI6TIJO

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/2OI6TIJOTNPQVFU36GT2RAQ7MJ \
  | 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: d391e9a12e9b5f0a969bf1a7a8821f627700d41906b1f09868ea0afd8d7b5e60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5baa624bff774352dc3458771c0bced7ca24d33215c9385cd1a91e1dccc6dd3f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-11-23T08:55:40Z",
    "title_canon_sha256": "be966e59b6103e3bce590bf6389286622f726430cb41a4012edb9ac08b5c8c0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5437",
    "kind": "arxiv",
    "version": 1
  }
}