Pith Number

pith:4DUY5EYM

pith:2004:4DUY5EYMLSK6ZUTPDQ5XTRCCH4

not attested not anchored not stored refs pending

Zemach and magnetic radius of the proton from the hyperfine splitting in hydrogen

A. V. Volotka, G. Plunien, G. Soff, V. M. Shabaev

arxiv:physics/0405118 v2 · 2004-05-21 · 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{4DUY5EYMLSK6ZUTPDQ5XTRCCH4}

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

Proton and neutron electromagnetic form factors from lattice QCD in the continuum limit

Receipt and verification

First computed	2026-07-04T16:49:51.808678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e98e930c5c95ecd26f1c3b79c4423f36feea6a89210cacaa433f0e0cce8d3a

Aliases

arxiv: physics/0405118 · arxiv_version: physics/0405118v2 · doi: 10.48550/arxiv.physics/0405118 · pith_short_12: 4DUY5EYMLSK6 · pith_short_16: 4DUY5EYMLSK6ZUTP · pith_short_8: 4DUY5EYM

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/4DUY5EYMLSK6ZUTPDQ5XTRCCH4 \
  | 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: e0e98e930c5c95ecd26f1c3b79c4423f36feea6a89210cacaa433f0e0cce8d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cc0c69acf9c9040c8c2f97238d4a27ac50f0ec49dd405767a0a97653ac6a25b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2004-05-21T16:51:52Z",
    "title_canon_sha256": "6ed678f4550ff93d74176219e14b2e5e22257e141584c20e187ec3f524bbca31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0405118",
    "kind": "arxiv",
    "version": 2
  }
}