Pith Number

pith:MMLRZBU2

pith:2009:MMLRZBU2JHXIIJW3FCXHORB37J

not attested not anchored not stored refs pending

Cosmological reconstruction of realistic modified F(R) gravities

Diego Saez-Gomez, Sergei D. Odintsov, Shin'ichi Nojiri

arxiv:0908.1269 v1 · 2009-08-10 · hep-th · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MMLRZBU2JHXIIJW3FCXHORB37J}

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	2026-05-18T02:34:37.955055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63171c869a49ee8426db28ae77443bfa402c4811e755dffa6b8947c43c07eebe

Aliases

arxiv: 0908.1269 · arxiv_version: 0908.1269v1 · doi: 10.48550/arxiv.0908.1269 · pith_short_12: MMLRZBU2JHXI · pith_short_16: MMLRZBU2JHXIIJW3 · pith_short_8: MMLRZBU2

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/MMLRZBU2JHXIIJW3FCXHORB37J \
  | 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: 63171c869a49ee8426db28ae77443bfa402c4811e755dffa6b8947c43c07eebe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "925f055ca354ed23528190b92ba86d800208cdd0073d27c7eee30654d56e21aa",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-08-10T04:54:57Z",
    "title_canon_sha256": "4434237f9ca83eb5e30d22120bd4df23fd41edd62450800b960a59cacad2567e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1269",
    "kind": "arxiv",
    "version": 1
  }
}