Pith Number

pith:EV7OSW7S

pith:2009:EV7OSW7SMEGLBZ4RCMRTG7UME7

not attested not anchored not stored refs pending

Stability of the Einstein static universe in modified Gauss-Bonnet gravity

Christian G. Boehmer, Francisco S. N. Lobo

arxiv:0902.2982 v3 · 2009-02-17 · gr-qc · 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{EV7OSW7SMEGLBZ4RCMRTG7UME7}

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

Static Spherically Symmetric Solutions in General Gauss-Bonnet Gravity

Receipt and verification

First computed	2026-07-04T15:40:15.375093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

257ee95bf2610cb0e7911323337e8c27ef094370874e8d9ba71612595ba50abb

Aliases

arxiv: 0902.2982 · arxiv_version: 0902.2982v3 · doi: 10.48550/arxiv.0902.2982 · pith_short_12: EV7OSW7SMEGL · pith_short_16: EV7OSW7SMEGLBZ4R · pith_short_8: EV7OSW7S

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/EV7OSW7SMEGLBZ4RCMRTG7UME7 \
  | 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: 257ee95bf2610cb0e7911323337e8c27ef094370874e8d9ba71612595ba50abb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b134fff53f253e0deb6f6621c5112fbc74cc5dc83414a56ed84be9ede933acdc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-17T19:35:29Z",
    "title_canon_sha256": "c6104fe273dde0b1545e746e1bffae6391f7082b611fe7466a49947a3250550e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2982",
    "kind": "arxiv",
    "version": 3
  }
}