Pith Number

pith:UMVBFUDW

pith:2006:UMVBFUDWFI4DGJWRZGRYA74EJY

not attested not anchored not stored refs pending

Time variation of proton-electron mass ratio and fine structure constant with runaway dilaton

Jun'ichi Yokoyama, Masahide Yamaguchi, Takeshi Chiba, Tatsuo Kobayashi

arxiv:hep-ph/0610027 v2 · 2006-10-02 · hep-ph · astro-ph · gr-qc · hep-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{UMVBFUDWFI4DGJWRZGRYA74EJY}

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	2026-07-04T15:17:10.808225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a32a12d0762a383326d1c9a3807f844e2514fd92f77fe0a77d8c0916381c74a0

Aliases

arxiv: hep-ph/0610027 · arxiv_version: hep-ph/0610027v2 · doi: 10.48550/arxiv.hep-ph/0610027 · pith_short_12: UMVBFUDWFI4D · pith_short_16: UMVBFUDWFI4DGJWR · pith_short_8: UMVBFUDW

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/UMVBFUDWFI4DGJWRZGRYA74EJY \
  | 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: a32a12d0762a383326d1c9a3807f844e2514fd92f77fe0a77d8c0916381c74a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d825f67d889352e5f5574f333dac7dafbae44472074a93b916d287e3d465b2ff",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2006-10-02T22:27:30Z",
    "title_canon_sha256": "8501400a69fa10b9ad5e0fd5eff71c0e242a34c8ed44e3986d198ca24b867ecd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0610027",
    "kind": "arxiv",
    "version": 2
  }
}