Pith Number

pith:5WJMZT35

pith:2019:5WJMZT35SXULTWCPMQPYOYYKOT

not attested not anchored not stored refs pending

Lamb shift in hydrogen-like muonic atoms to test fractal extra dimensions

Alfredo Vega, Daniela Grand\'on

arxiv:1903.00587 v1 · 2019-03-02 · hep-ph · 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{5WJMZT35SXULTWCPMQPYOYYKOT}

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	2026-05-17T23:52:00.767699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed92cccf7d95e8b9d84f641f87630a74f595ee5afac44e2207593a63c6ff014a

Aliases

arxiv: 1903.00587 · arxiv_version: 1903.00587v1 · doi: 10.48550/arxiv.1903.00587 · pith_short_12: 5WJMZT35SXUL · pith_short_16: 5WJMZT35SXULTWCP · pith_short_8: 5WJMZT35

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/5WJMZT35SXULTWCPMQPYOYYKOT \
  | 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: ed92cccf7d95e8b9d84f641f87630a74f595ee5afac44e2207593a63c6ff014a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "869acc47f328f75c99dd8260ba2afefb6a6ded721e6c546f837ccf95b4414bda",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-03-02T00:40:06Z",
    "title_canon_sha256": "be91a5cde219e3335c572850f97947cc0f00da0e739d313f497d52b1abeb5c2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00587",
    "kind": "arxiv",
    "version": 1
  }
}