Pith Number

pith:E2QJXEGZ

pith:2011:E2QJXEGZ64OGPZXDFIWUK4LLOS

not attested not anchored not stored refs pending

Cosmological evolution in R^2 gravity

A. D. Dolgov, E. V. Arbuzova, L. Reverberi

arxiv:1112.4995 v4 · 2011-12-21 · gr-qc · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2QJXEGZ64OGPZXDFIWUK4LLOS}

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

Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

Receipt and verification

First computed	2026-05-18T01:59:04.058471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26a09b90d9f71c67e6e32a2d45716b749c00298eace285f7001c3d056531b317

Aliases

arxiv: 1112.4995 · arxiv_version: 1112.4995v4 · doi: 10.48550/arxiv.1112.4995 · pith_short_12: E2QJXEGZ64OG · pith_short_16: E2QJXEGZ64OGPZXD · pith_short_8: E2QJXEGZ

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/E2QJXEGZ64OGPZXDFIWUK4LLOS \
  | 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: 26a09b90d9f71c67e6e32a2d45716b749c00298eace285f7001c3d056531b317

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f55f86a52a8556ac7c11fc3324e5ba92d0f842c84260c064cf7a6665cc4b148",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-12-21T11:45:09Z",
    "title_canon_sha256": "e1446f97d370c4fa299fcbc068959ae5785b2968688397b84b6e1d361964f307"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4995",
    "kind": "arxiv",
    "version": 4
  }
}