Pith Number

pith:ECQAUPYG

pith:2013:ECQAUPYGJQJEY7YV4I6J75KAKW

not attested not anchored not stored refs pending

Muonic hydrogen and the proton radius puzzle

Gerald A. Miller, Krzysztof Pachucki, Randolf Pohl, Ronald Gilman

arxiv:1301.0905 v2 · 2013-01-05 · physics.atom-ph · hep-ph · nucl-ex · nucl-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECQAUPYGJQJEY7YV4I6J75KAKW}

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	2026-05-18T03:22:07.889683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a00a3f064c124c7f15e23c9ff54055a5f712fb649c297a5c3ca1e2970a775b

Aliases

arxiv: 1301.0905 · arxiv_version: 1301.0905v2 · doi: 10.48550/arxiv.1301.0905 · pith_short_12: ECQAUPYGJQJE · pith_short_16: ECQAUPYGJQJEY7YV · pith_short_8: ECQAUPYG

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/ECQAUPYGJQJEY7YV4I6J75KAKW \
  | 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: 20a00a3f064c124c7f15e23c9ff54055a5f712fb649c297a5c3ca1e2970a775b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a2f42bc2a8b961578edfaaf052e141248c3c2acc8e66674675d177332140a8e",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-ex",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2013-01-05T14:14:42Z",
    "title_canon_sha256": "0f9b435ba1a0685a7dcf0bad8a11002bd1b5c8f4fe4e9dc4b1555c377e5faf53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0905",
    "kind": "arxiv",
    "version": 2
  }
}