Pith Number

pith:HF5KMHRI

pith:1999:HF5KMHRIYCVMQTSVO4XIATA62P

not attested not anchored not stored refs pending

A superradiance resonance cavity outside rapidly rotating black holes

Kostas Glampedakis, Nils Andersson

arxiv:gr-qc/9909050 v1 · 1999-09-16 · 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{HF5KMHRIYCVMQTSVO4XIATA62P}

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

3 papers in Pith

Superradiance -- the 2020 Edition

Kerr Black Hole Ringdown in Effective Field Theory

Black hole spectroscopy: from theory to experiment

Receipt and verification

First computed	2026-07-04T16:13:54.464912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

397aa61e28c0aac84e55772e804c1ed3c6f0617e95150955b1cfa831ab17647c

Aliases

arxiv: gr-qc/9909050 · arxiv_version: gr-qc/9909050v1 · doi: 10.48550/arxiv.gr-qc/9909050 · pith_short_12: HF5KMHRIYCVM · pith_short_16: HF5KMHRIYCVMQTSV · pith_short_8: HF5KMHRI

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/HF5KMHRIYCVMQTSVO4XIATA62P \
  | 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: 397aa61e28c0aac84e55772e804c1ed3c6f0617e95150955b1cfa831ab17647c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246fa2f7730935b5159fe9ea102b05a4d84a6b82d2d9b0daadc2a8d10cfb965d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-09-16T09:21:32Z",
    "title_canon_sha256": "0ba93ddefa90a762a7ae4eff98eeb0bf04f39daf67c82a2aeb8bcf1de88aa10b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9909050",
    "kind": "arxiv",
    "version": 1
  }
}