Pith Number

pith:GAWQX5K6

pith:2004:GAWQX5K6SAAXWL7BC4VVWYXFMI

not attested not anchored not stored refs pending

On the time variation of c, G, and h and the dynamics of the cosmic expansion

A. Buchalter

arxiv:astro-ph/0403202 v1 · 2004-03-09 · 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{GAWQX5K6SAAXWL7BC4VVWYXFMI}

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

Dilaton-induced variations in Planck constant and speed of light: An alternative to Dark Energy

Receipt and verification

First computed	2026-07-04T14:13:22.713885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

302d0bf55e90017b2fe1172b5b62e5623c76decf027f46fc24e2fb262d17d414

Aliases

arxiv: astro-ph/0403202 · arxiv_version: astro-ph/0403202v1 · doi: 10.48550/arxiv.astro-ph/0403202 · pith_short_12: GAWQX5K6SAAX · pith_short_16: GAWQX5K6SAAXWL7B · pith_short_8: GAWQX5K6

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/GAWQX5K6SAAXWL7BC4VVWYXFMI \
  | 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: 302d0bf55e90017b2fe1172b5b62e5623c76decf027f46fc24e2fb262d17d414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "601b2e8c7764ff759517acad054113035349e543e2096b8039fd08c3890f619a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-09T04:02:29Z",
    "title_canon_sha256": "bf0a156fac621ee65d4fc97a86bd166f0fb7861777885691801e31acc61de6e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403202",
    "kind": "arxiv",
    "version": 1
  }
}