Pith Number

pith:ZPEH77QR

pith:2019:ZPEH77QRXAFPPUHM2CAPGL3WAM

not attested not anchored not stored refs pending

Gauss-Bonnet black holes with a massive scalar field

Daniela D. Doneva, Kalin V. Staykov, Stoytcho S. Yazadjiev

arxiv:1903.08119 v2 · 2019-03-19 · gr-qc · astro-ph.HE · 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{ZPEH77QRXAFPPUHM2CAPGL3WAM}

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	2026-05-17T23:44:54.885092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc87ffe11b80af7d0ecd080f32f760300e98466e33c005d02d863b9104bedbc

Aliases

arxiv: 1903.08119 · arxiv_version: 1903.08119v2 · doi: 10.48550/arxiv.1903.08119 · pith_short_12: ZPEH77QRXAFP · pith_short_16: ZPEH77QRXAFPPUHM · pith_short_8: ZPEH77QR

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/ZPEH77QRXAFPPUHM2CAPGL3WAM \
  | 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: cbc87ffe11b80af7d0ecd080f32f760300e98466e33c005d02d863b9104bedbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4fcb14aa3ca577731e6118aa12275f9118c130bc528587a2a68b59c0c6b1aef",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-03-19T17:21:51Z",
    "title_canon_sha256": "0f52fd2cd225dd770eb0643733254ca815ea131499fa15836f61137f98298475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08119",
    "kind": "arxiv",
    "version": 2
  }
}