Pith Number

pith:P4ZMW6F6

pith:2019:P4ZMW6F6WQUEPWGBTKURYKVOPP

not attested not anchored not stored refs pending

Excitation of the $^{229}$Th nucleus via a two-photon electronic transition

Andrey Surzhykov, Andrey V. Volotka, Robert A. M\"uller

arxiv:1902.05459 v2 · 2019-02-14 · physics.atom-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{P4ZMW6F6WQUEPWGBTKURYKVOPP}

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	2026-05-17T23:46:03.468361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f32cb78beb42847d8c19aa91c2aae7bea080910e115898820d1d5676c4ee5fe

Aliases

arxiv: 1902.05459 · arxiv_version: 1902.05459v2 · doi: 10.48550/arxiv.1902.05459 · pith_short_12: P4ZMW6F6WQUE · pith_short_16: P4ZMW6F6WQUEPWGB · pith_short_8: P4ZMW6F6

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/P4ZMW6F6WQUEPWGBTKURYKVOPP \
  | 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: 7f32cb78beb42847d8c19aa91c2aae7bea080910e115898820d1d5676c4ee5fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3022e91fc750e7311b4c6117adae5e2fe210d9a68bb4c4f932e70c24f2110e40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-02-14T15:50:50Z",
    "title_canon_sha256": "0be33ca0014a4841742d650ae03eefbcd8bc81d10d46f79788d651ec8ae495cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05459",
    "kind": "arxiv",
    "version": 2
  }
}