Pith Number

pith:P76JGQIF

pith:2008:P76JGQIFOVWXEYDTJLVVRLYG67

not attested not anchored not stored refs pending

Relativistic stars in f(R) gravity, and absence thereof

Kei-ichi Maeda, Tsutomu Kobayashi

arxiv:0807.2503 v2 · 2008-07-16 · astro-ph · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P76JGQIFOVWXEYDTJLVVRLYG67}

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

Testing General Relativity with Present and Future Astrophysical Observations

Receipt and verification

First computed	2026-07-04T15:38:16.760750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ffc934105756d7260734aeb58af06f7fdceed51b75f96e3e8cf468102619dd9

Aliases

arxiv: 0807.2503 · arxiv_version: 0807.2503v2 · doi: 10.48550/arxiv.0807.2503 · pith_short_12: P76JGQIFOVWX · pith_short_16: P76JGQIFOVWXEYDT · pith_short_8: P76JGQIF

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/P76JGQIFOVWXEYDTJLVVRLYG67 \
  | 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: 7ffc934105756d7260734aeb58af06f7fdceed51b75f96e3e8cf468102619dd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d40c1b636180ed33859fc91463c19225514381b9d7a89cd09e907d245e83f523",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-16T07:03:39Z",
    "title_canon_sha256": "42d4597d2ba031e0723626401ab2bdd54773560a4e34466724bf60047bd53cd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.2503",
    "kind": "arxiv",
    "version": 2
  }
}