Pith Number

pith:DML53S4W

pith:2006:DML53S4WZ4SPZTEFAW2CWXTQWZ

not attested not anchored not stored refs pending

Possible variations of the fine structure constant $\alpha$ and their metrological significance

K.A. Bronnikov, S.A. Kononogov

arxiv:gr-qc/0604002 v3 · 2006-04-01 · gr-qc · 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{DML53S4WZ4SPZTEFAW2CWXTQWZ}

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	2026-05-18T03:55:56.483047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b17ddcb96cf24fccc8505b42b5e70b66cd674445b99738484c2e6283da1ef4c

Aliases

arxiv: gr-qc/0604002 · arxiv_version: gr-qc/0604002v3 · doi: 10.48550/arxiv.gr-qc/0604002 · pith_short_12: DML53S4WZ4SP · pith_short_16: DML53S4WZ4SPZTEF · pith_short_8: DML53S4W

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/DML53S4WZ4SPZTEFAW2CWXTQWZ \
  | 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: 1b17ddcb96cf24fccc8505b42b5e70b66cd674445b99738484c2e6283da1ef4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6883f7e988040dd239b726a2a59930ad8ec386a661f5576cec0e36bcb34d102a",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-04-01T13:47:02Z",
    "title_canon_sha256": "08ccfb2b3902b4c12d7f6abfb6c70c9ca7f446fc4d7d2da596d5da659daad825"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0604002",
    "kind": "arxiv",
    "version": 3
  }
}