Pith Number

pith:LDEXZOK6

pith:2000:LDEXZOK6IKGBOSJWBV3K7VJ2CE

not attested not anchored not stored refs pending

The hydrogen Lamb shift and the proton radius

Garching), Max-Planck-Institut fuer Quantenoptik, Savely G. Karshenboim (D. I. Mendeleev Institute for Metrology, St. Petersburg

arxiv:hep-ph/0008137 v1 · 2000-08-14 · 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{LDEXZOK6IKGBOSJWBV3K7VJ2CE}

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	2026-07-04T14:27:39.339828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58c97cb95e428c1749360d76afd53a11207deb23ab9eb66cd9a1546f5dc62390

Aliases

arxiv: hep-ph/0008137 · arxiv_version: hep-ph/0008137v1 · doi: 10.48550/arxiv.hep-ph/0008137 · pith_short_12: LDEXZOK6IKGB · pith_short_16: LDEXZOK6IKGBOSJW · pith_short_8: LDEXZOK6

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/LDEXZOK6IKGBOSJWBV3K7VJ2CE \
  | 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: 58c97cb95e428c1749360d76afd53a11207deb23ab9eb66cd9a1546f5dc62390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6a296dee2dbf9c2ae3812dc6b085bcce09479cdcbcdc39e46bbb13f3e274b20",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2000-08-14T16:07:02Z",
    "title_canon_sha256": "91c21fc13cb0d10b6b5127b3f8db838982e9c1b06f0d1caa7f00a031a4ceed67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0008137",
    "kind": "arxiv",
    "version": 1
  }
}