Pith Number

pith:OI2BCFLJ

pith:2010:OI2BCFLJSRH3XOFAEZZFSOMUC2

not attested not anchored not stored refs pending

Statefinder diagnosis for the Palatini $f(R)$ gravity theories

Hao-Ran Yu, Song Li, Tong-Jie Zhang

arxiv:1002.3867 v1 · 2010-02-20 · 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{OI2BCFLJSRH3XOFAEZZFSOMUC2}

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	2026-07-04T17:22:15.660200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7234111569944fbbb8a0267259399416b64cc0209caa72107717afd635236722

Aliases

arxiv: 1002.3867 · arxiv_version: 1002.3867v1 · doi: 10.48550/arxiv.1002.3867 · pith_short_12: OI2BCFLJSRH3 · pith_short_16: OI2BCFLJSRH3XOFA · pith_short_8: OI2BCFLJ

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/OI2BCFLJSRH3XOFAEZZFSOMUC2 \
  | 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: 7234111569944fbbb8a0267259399416b64cc0209caa72107717afd635236722

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca9db9401e88407266c99e5d38e4d51b9cfb71acf08cfafe766d14db3606d5f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-20T11:02:42Z",
    "title_canon_sha256": "c71a81a003f139d9ef69f56d4b58caef3d8475f9695fdfc6427cca083c4fa4a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3867",
    "kind": "arxiv",
    "version": 1
  }
}