Pith Number

pith:IHWW5EON

pith:2003:IHWW5EON7S6CPHXOPUJN47Z3US

not attested not anchored not stored refs pending

Time variation of G and \alpha within models with extra dimensions

E. Garcia-Berro, J. Isern, P. Loren-Aguilar, Yu.A. Kubyshin

arxiv:astro-ph/0309722 v1 · 2003-09-26 · 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{IHWW5EON7S6CPHXOPUJN47Z3US}

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	2026-07-04T16:51:45.793501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41ed6e91cdfcbc279eee7d12de7f3ba4ae1762b791f3779fc5273d02ec58e6d2

Aliases

arxiv: astro-ph/0309722 · arxiv_version: astro-ph/0309722v1 · doi: 10.48550/arxiv.astro-ph/0309722 · pith_short_12: IHWW5EON7S6C · pith_short_16: IHWW5EON7S6CPHXO · pith_short_8: IHWW5EON

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/IHWW5EON7S6CPHXOPUJN47Z3US \
  | 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: 41ed6e91cdfcbc279eee7d12de7f3ba4ae1762b791f3779fc5273d02ec58e6d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f97d3079d6c4c28972095b1de625aa573bcd0193fe474599cf5e5baa2e435494",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-26T07:52:48Z",
    "title_canon_sha256": "2db6f873ddcde050fa03d120abcc38009d4e0bed0757fa405d518a9b4f2284d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309722",
    "kind": "arxiv",
    "version": 1
  }
}