Pith Number

pith:OW4YLI6W

pith:2005:OW4YLI6WT2XFVCO4OUI24KGAND

not attested not anchored not stored refs pending

Local Experiments See Cosmologically Varying Constants

Douglas J. Shaw, John D. Barrow

arxiv:gr-qc/0512117 v2 · 2005-12-20 · gr-qc · astro-ph · 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{OW4YLI6WT2XFVCO4OUI24KGAND}

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	2026-05-18T04:18:02.153293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75b985a3d69eae5a89dc7511ae28c068dace9dea2d62db52a5c930a73ae8aed8

Aliases

arxiv: gr-qc/0512117 · arxiv_version: gr-qc/0512117v2 · doi: 10.48550/arxiv.gr-qc/0512117 · pith_short_12: OW4YLI6WT2XF · pith_short_16: OW4YLI6WT2XFVCO4 · pith_short_8: OW4YLI6W

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/OW4YLI6WT2XFVCO4OUI24KGAND \
  | 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: 75b985a3d69eae5a89dc7511ae28c068dace9dea2d62db52a5c930a73ae8aed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "100d92da23ef91a269f557d179159bc06c188c9158d438c8a19f0f9a9a38f56b",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-12-20T19:35:48Z",
    "title_canon_sha256": "effcb25151e10a90bb509f2f820a546405e30bc2546941c77729fd47762acde1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0512117",
    "kind": "arxiv",
    "version": 2
  }
}