Pith Number

pith:WRJKF43J

pith:2018:WRJKF43J7WQFDZFPTTF36YH43B

not attested not anchored not stored refs pending

Two clock transitions in neutral Yb for the highest sensitivity to variations of the fine-structure constant

Christian Sanner, Jun Ye, M. S. Safronova, S. G. Porsev

arxiv:1801.06239 v2 · 2018-01-18 · physics.atom-ph · hep-ph · physics.optics · quant-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{WRJKF43J7WQFDZFPTTF36YH43B}

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	2026-05-18T00:17:07.668862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b452a2f369fda051e4af9ccbbf60fcd85a8ff219aa54222ddcb47e51622e53c8

Aliases

arxiv: 1801.06239 · arxiv_version: 1801.06239v2 · doi: 10.48550/arxiv.1801.06239 · pith_short_12: WRJKF43J7WQF · pith_short_16: WRJKF43J7WQFDZFP · pith_short_8: WRJKF43J

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/WRJKF43J7WQFDZFPTTF36YH43B \
  | 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: b452a2f369fda051e4af9ccbbf60fcd85a8ff219aa54222ddcb47e51622e53c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14eac3f58a43def609099b10a4a61c1c178d56d164b066bb52cda87884e08134",
    "cross_cats_sorted": [
      "hep-ph",
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-01-18T21:01:56Z",
    "title_canon_sha256": "257240c77eb23ed5198b9e9c63ef9b793e5ff3c3b1ad4357f7bad2ec95e23bc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06239",
    "kind": "arxiv",
    "version": 2
  }
}