Pith Number

pith:7VKXUSWF

pith:2012:7VKXUSWFT4PWKKYIL5YAVOEW73

not attested not anchored not stored refs pending

Frequency metrology of helium around 1083 nm and determination of the nuclear charge radius

G. Giusfredi, K. Pachucki, L. Consolino, M. Inguscio, P. Cancio Pastor, P. De Natale, V.A. Yerokhin

arxiv:1201.1362 v2 · 2012-01-06 · 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{7VKXUSWFT4PWKKYIL5YAVOEW73}

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	2026-05-18T03:58:24.334068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd557a4ac59f1f652b085f700ab896fef9cd1f13039c5e5f6bbbdccd3bcf9a42

Aliases

arxiv: 1201.1362 · arxiv_version: 1201.1362v2 · doi: 10.48550/arxiv.1201.1362 · pith_short_12: 7VKXUSWFT4PW · pith_short_16: 7VKXUSWFT4PWKKYI · pith_short_8: 7VKXUSWF

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/7VKXUSWFT4PWKKYIL5YAVOEW73 \
  | 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: fd557a4ac59f1f652b085f700ab896fef9cd1f13039c5e5f6bbbdccd3bcf9a42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35e63bd9f4bbc5dee02d8647c21d68512e5751b7f4b5dd9e70758a1d29aebdd7",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-01-06T08:05:16Z",
    "title_canon_sha256": "2b2e9dc0476615be3a707e62b7718fd01044a8a8bb6c07293c7201a15f79901a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1362",
    "kind": "arxiv",
    "version": 2
  }
}