Pith Number

pith:MG6BCSGY

pith:2009:MG6BCSGYBER6AJKSROYEPM4RUT

not attested not anchored not stored refs pending

Topological Black Holes of Gauss-Bonnet-Yang-Mills Gravity

M. H. Dehghani, N. Bostani, R. Pourhasan

arxiv:0908.0663 v1 · 2009-08-05 · 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{MG6BCSGYBER6AJKSROYEPM4RUT}

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	2026-05-18T04:42:23.140769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61bc1148d80923e025528bb047b391a4fc62cd362033c25483b263d6a755cc20

Aliases

arxiv: 0908.0663 · arxiv_version: 0908.0663v1 · doi: 10.48550/arxiv.0908.0663 · pith_short_12: MG6BCSGYBER6 · pith_short_16: MG6BCSGYBER6AJKS · pith_short_8: MG6BCSGY

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/MG6BCSGYBER6AJKSROYEPM4RUT \
  | 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: 61bc1148d80923e025528bb047b391a4fc62cd362033c25483b263d6a755cc20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e51f4d5670bbc611369b3e3581032ce55a5721ce3769f714b39f9d6ccae3edc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-08-05T13:00:30Z",
    "title_canon_sha256": "0799af31403b089c64378dbb70bb534e42cde2e5c131eb3c6957c1769a56f252"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0663",
    "kind": "arxiv",
    "version": 1
  }
}