Pith Number

pith:T3EXJQT5

pith:2014:T3EXJQT5XIKRMMKMIACSFX22I7

not attested not anchored not stored refs pending

Attempts at a determination of the fine-structure constant from first principles: A brief historical overview

I. Nandori, U. D. Jentschura

arxiv:1411.4673 v1 · 2014-11-17 · 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{T3EXJQT5XIKRMMKMIACSFX22I7}

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	2026-05-18T02:30:46.800108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ec974c27dba1516314c400522df5a47cf1c2cbb1d2e0cbf2ae305df8f79ed78

Aliases

arxiv: 1411.4673 · arxiv_version: 1411.4673v1 · doi: 10.48550/arxiv.1411.4673 · pith_short_12: T3EXJQT5XIKR · pith_short_16: T3EXJQT5XIKRMMKM · pith_short_8: T3EXJQT5

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/T3EXJQT5XIKRMMKMIACSFX22I7 \
  | 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: 9ec974c27dba1516314c400522df5a47cf1c2cbb1d2e0cbf2ae305df8f79ed78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a45417f9b17724302879409053c995a8a6888a1787655b48ee10ded9a9198f59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2014-11-17T21:30:27Z",
    "title_canon_sha256": "f54b8dd4b56ec78729a3c142d7df86773d338823a36edf3075e2583ae5424a39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.4673",
    "kind": "arxiv",
    "version": 1
  }
}