Pith Number

pith:ONGTWELN

pith:2026:ONGTWELN72ZW4IKBU4JMK2ZBK4

not attested not anchored not stored refs pending

Static Black Holes and Iyer--Wald Entropy in $f(\mathcal{R},\mathcal{K})$ Gravity

I. D\'iaz-Salda\~na, Javier Chagoya, J. L\'opez-Dom\'inguez, M. Sabido, Wilfredo Yunpanqui

arxiv:2607.21786 v1 · 2026-07-23 · 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{ONGTWELN72ZW4IKBU4JMK2ZBK4}

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	2026-07-27T00:20:20.923780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

734d3b116dfeb36e2141a712c56b215717eaedda48eb72a7acfbc08dc87a9fe2

Aliases

arxiv: 2607.21786 · arxiv_version: 2607.21786v1 · doi: 10.48550/arxiv.2607.21786 · pith_short_12: ONGTWELN72ZW · pith_short_16: ONGTWELN72ZW4IKB · pith_short_8: ONGTWELN

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/ONGTWELN72ZW4IKBU4JMK2ZBK4 \
  | 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: 734d3b116dfeb36e2141a712c56b215717eaedda48eb72a7acfbc08dc87a9fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46e2d194984441167cd8c69198bc69bde91426f26928020aaf2526ca76594983",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-23T20:05:48Z",
    "title_canon_sha256": "5930c0687080a7c6fcfeec0461e8dfefc4597e7f367bde7719c14b469b493cc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21786",
    "kind": "arxiv",
    "version": 1
  }
}