Pith Number

pith:KGX6PF2O

pith:2026:KGX6PF2OO7E6NAUZ66UXDCLPMC

not attested not anchored not stored refs pending

Superradiant Instability and Two Classes of Scalar Clouds around Kerr-Bertotti-Robinson Black Holes

Haowei Chen, Hengyu Xu, Shao-Jun Zhang

arxiv:2606.27958 v1 · 2026-06-26 · 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{KGX6PF2OO7E6NAUZ66UXDCLPMC}

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	2026-06-29T01:14:53.781494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51afe7974e77c9e68299f7a971896f609cace38a8847e801d4c30a73f13e80de

Aliases

arxiv: 2606.27958 · arxiv_version: 2606.27958v1 · doi: 10.48550/arxiv.2606.27958 · pith_short_12: KGX6PF2OO7E6 · pith_short_16: KGX6PF2OO7E6NAUZ · pith_short_8: KGX6PF2O

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/KGX6PF2OO7E6NAUZ66UXDCLPMC \
  | 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: 51afe7974e77c9e68299f7a971896f609cace38a8847e801d4c30a73f13e80de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "674aaf662f163b0add92e82ffda39b35b01607afee5ec65b7cdd952d904fdc02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-26T11:00:10Z",
    "title_canon_sha256": "5710539384b9021adea2a43d23a6129b62eb834910502b9177a45026b4e43835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27958",
    "kind": "arxiv",
    "version": 1
  }
}