pith. sign in
Pith Number

pith:RY4MBVK5

pith:2011:RY4MBVK5S3FYOYE3Z3XN5AXQIP
not attested not anchored not stored refs pending

f(R,T) gravity

Francisco S.N. Lobo, Sergei D. Odintsov, Shin'ichi Nojiri, Tiberiu Harko

arxiv:1104.2669 v2 · 2011-04-14 · gr-qc · astro-ph.CO · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{RY4MBVK5S3FYOYE3Z3XN5AXQIP}

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

6 papers in Pith

Receipt and verification
First computed 2026-05-18T04:18:23.220294Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8e38c0d55d96cb87609bceeede82f043cc315ae959d7d114e9f57456f4a3b42c

Aliases

arxiv: 1104.2669 · arxiv_version: 1104.2669v2 · doi: 10.48550/arxiv.1104.2669 · pith_short_12: RY4MBVK5S3FY · pith_short_16: RY4MBVK5S3FYOYE3 · pith_short_8: RY4MBVK5
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/RY4MBVK5S3FYOYE3Z3XN5AXQIP \
  | 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: 8e38c0d55d96cb87609bceeede82f043cc315ae959d7d114e9f57456f4a3b42c
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "905bfacaeda93ebd9fe828be1810b8d2efc9177c9f7c87a3613372f1a482901e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-04-14T05:47:38Z",
    "title_canon_sha256": "e869fbb6031c91ec11aa9407fa5b4c5b44444028eb637414ef011d1e845fc1f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2669",
    "kind": "arxiv",
    "version": 2
  }
}