Pith Number

pith:KYPWKXYC

pith:2014:KYPWKXYCBKIBK5B3IQRK7U4UZS

not attested not anchored not stored refs pending

Proton charge radius and the perturbative quantum electrodynamics

Krzysztof A. Meissner, Krzysztof Pachucki

arxiv:1405.6582 v2 · 2014-05-26 · hep-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{KYPWKXYCBKIBK5B3IQRK7U4UZS}

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	2026-05-18T02:49:11.549486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

561f655f020a9015743b4422afd394cc94fad022b93e04cf7419bfc213dcbc85

Aliases

arxiv: 1405.6582 · arxiv_version: 1405.6582v2 · doi: 10.48550/arxiv.1405.6582 · pith_short_12: KYPWKXYCBKIB · pith_short_16: KYPWKXYCBKIBK5B3 · pith_short_8: KYPWKXYC

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/KYPWKXYCBKIBK5B3IQRK7U4UZS \
  | 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: 561f655f020a9015743b4422afd394cc94fad022b93e04cf7419bfc213dcbc85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cd7a5737f896e0490bde77522ed4bbda7efd0a45dce9b5f0c36e8a2cf81193f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2014-05-26T14:15:29Z",
    "title_canon_sha256": "580b7bea649fe0707a5b2fd7c213e69e7de66c8bff1d5952314494f02a186ab4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6582",
    "kind": "arxiv",
    "version": 2
  }
}