Pith Number

pith:OPWFEMWW

pith:2009:OPWFEMWWC5RX44BIBMDMZLLNDO

not attested not anchored not stored refs pending

Enhanced sensitivity to the fine-structure constant variation in Th IV atomic clock transition

S.G. Porsev, V.V. Flambaum

arxiv:0910.3459 v1 · 2009-10-19 · 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{OPWFEMWWC5RX44BIBMDMZLLNDO}

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.

Cited by

1 paper in Pith

Using the Th III Ion for a Nuclear Clock and Searches for New Physics

Receipt and verification

First computed	2026-07-04T17:27:28.052171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73ec5232d617637e70280b06ccad6d1b96f5e20780f614e91eaaa8afb8d0118e

Aliases

arxiv: 0910.3459 · arxiv_version: 0910.3459v1 · doi: 10.48550/arxiv.0910.3459 · pith_short_12: OPWFEMWWC5RX · pith_short_16: OPWFEMWWC5RX44BI · pith_short_8: OPWFEMWW

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/OPWFEMWWC5RX44BIBMDMZLLNDO \
  | 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: 73ec5232d617637e70280b06ccad6d1b96f5e20780f614e91eaaa8afb8d0118e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d78a4d285fa9e338d5f83483760be88880505c308913051f7ff397ba0c7054ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-10-19T05:13:34Z",
    "title_canon_sha256": "4dd6b48e10c5ffa143f2b0ce1d6dfaa6420373cc7f0f2a4ebe8d649a24a40261"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3459",
    "kind": "arxiv",
    "version": 1
  }
}