Pith Number

pith:NRJHUUJH

pith:2010:NRJHUUJHPDBO2JFOMRDVDDNMNO

not attested not anchored not stored refs pending

Restricting Fourth Order Gravity via Cosmology

William Nelson

arxiv:1012.3353 v2 · 2010-12-15 · 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{NRJHUUJHPDBO2JFOMRDVDDNMNO}

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

Gauge-independent approach to inflation in quadratic gravity

Receipt and verification

First computed	2026-05-18T04:27:26.442468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c527a512778c2ed24ae6447518dac6bbc54e0d71d9437ce1ea37ab033b15028

Aliases

arxiv: 1012.3353 · arxiv_version: 1012.3353v2 · doi: 10.48550/arxiv.1012.3353 · pith_short_12: NRJHUUJHPDBO · pith_short_16: NRJHUUJHPDBO2JFO · pith_short_8: NRJHUUJH

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/NRJHUUJHPDBO2JFOMRDVDDNMNO \
  | 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: 6c527a512778c2ed24ae6447518dac6bbc54e0d71d9437ce1ea37ab033b15028

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a2c45cbfe19da2ba01dc57f4c1e07c7bb0f7c7e43dce3303109039ed891b137",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-12-15T15:03:45Z",
    "title_canon_sha256": "927fc9fc072adf67da0c26da6331866018d8e23a982c30a17564c52773bef907"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3353",
    "kind": "arxiv",
    "version": 2
  }
}