Pith Number

pith:54TNMHUV

pith:2026:54TNMHUV4YINYJRFOIH4IMYEID

not attested not anchored not stored refs pending

Dual-Platform Precision Measurement of the $3^2D_{5/2}$ to $4^2S_{1/2}$ $g$-Factor Ratio in $^{40}\text{Ca}^+$

Brian C. Sawyer, Brian J. McMahon, Creston D. Herold, John M. Gray, Kenton R. Brown, Vikram S. Sandhu

arxiv:2607.07929 v1 · 2026-07-08 · physics.atom-ph · 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{54TNMHUV4YINYJRFOIH4IMYEID}

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	2026-07-10T00:19:05.065815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef26d61e95e610dc2625720fc4330440ee5014c101232bb8e242278aa3078611

Aliases

arxiv: 2607.07929 · arxiv_version: 2607.07929v1 · doi: 10.48550/arxiv.2607.07929 · pith_short_12: 54TNMHUV4YIN · pith_short_16: 54TNMHUV4YINYJRF · pith_short_8: 54TNMHUV

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/54TNMHUV4YINYJRFOIH4IMYEID \
  | 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: ef26d61e95e610dc2625720fc4330440ee5014c101232bb8e242278aa3078611

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3393ebfa6cd87f5174b382c393c397652381750f28472d5a4cd8983ce3e23c98",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2026-07-08T21:21:33Z",
    "title_canon_sha256": "9785d1ee751a07d98bc62769095d2efbb543c388a108e1a7f069247db0852183"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07929",
    "kind": "arxiv",
    "version": 1
  }
}