Pith Number

pith:XNOKVH2R

pith:2012:XNOKVH2RHPU67BSPOKW45RWLF4

not attested not anchored not stored refs pending

Critical Cosmology in Higher Order Gravity

Kiyoshi Shiraishi (Yamaguchi University), Koichiro Kobayashi, Nahomi Kan (Yamaguchi Junior College)

arxiv:1202.2428 v2 · 2012-02-11 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNOKVH2RHPU67BSPOKW45RWLF4}

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	2026-05-18T03:29:27.742583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb5caa9f513be9ef864f72adcec6cb2f3c79836a265ea1ccf267544c3a8747d5

Aliases

arxiv: 1202.2428 · arxiv_version: 1202.2428v2 · doi: 10.48550/arxiv.1202.2428 · pith_short_12: XNOKVH2RHPU6 · pith_short_16: XNOKVH2RHPU67BSP · pith_short_8: XNOKVH2R

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/XNOKVH2RHPU67BSPOKW45RWLF4 \
  | 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: bb5caa9f513be9ef864f72adcec6cb2f3c79836a265ea1ccf267544c3a8747d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cbc1e72a1251392f4bfed5280f89d4d9aa4bbbbda64ff818354b4f4b5b543a1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-11T10:42:39Z",
    "title_canon_sha256": "34af7d130c2f5dbd9535e5c6b3944d2e22e4fa6f0df065a66a62080f30394b9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2428",
    "kind": "arxiv",
    "version": 2
  }
}