Pith Number

pith:X54VSC4W

pith:2001:X54VSC4WXD7JO7HTT3KRUCEM7M

not attested not anchored not stored refs pending

A Varying-alpha Brane World Cosmology

Donam Youm

arxiv:hep-th/0108237 v2 · 2001-08-31 · hep-th · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X54VSC4WXD7JO7HTT3KRUCEM7M}

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.

Cited by

1 paper in Pith

Revisiting Varying Speed of Light in Cosmology: Insights from the Friedmann-Lema\^itre-Robertson-Walker Metric

Receipt and verification

First computed	2026-07-04T14:31:40.889482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf79590b96b8fe977cf39ed51a088cfb00437a69fa39f46b34680b5926a0d2b9

Aliases

arxiv: hep-th/0108237 · arxiv_version: hep-th/0108237v2 · doi: 10.48550/arxiv.hep-th/0108237 · pith_short_12: X54VSC4WXD7J · pith_short_16: X54VSC4WXD7JO7HT · pith_short_8: X54VSC4W

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/X54VSC4WXD7JO7HTT3KRUCEM7M \
  | 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: bf79590b96b8fe977cf39ed51a088cfb00437a69fa39f46b34680b5926a0d2b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7677d20c6f1b56861518595e2d3534fabbe402606d8a36e561e0d2f0e0fa843",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2001-08-31T16:15:57Z",
    "title_canon_sha256": "153925c92823923810a8cfc1277b1579d90bc04b446e53d725330478a3508eac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0108237",
    "kind": "arxiv",
    "version": 2
  }
}