Pith Number

pith:W2ZFJ2BM

pith:2021:W2ZFJ2BMJF2MRGI5X6Z7B4BBPX

not attested not anchored not stored refs pending

Eigenvalue repulsions in the quasinormal spectra of the Kerr-Newman black hole

Danny Laghi, Gregorio Carullo, Jorge E. Santos, Mahdi Godazgar, Oscar J.C. Dias, Walter Del Pozzo

arxiv:2109.13949 v1 · 2021-09-28 · gr-qc · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2ZFJ2BMJF2MRGI5X6Z7B4BBPX}

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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

4 papers in Pith

Exceptional Points and Resonance in Black Hole Ringdown

Detectability of avoided crossings in black hole ringdowns

Quasinormal modes of Kerr-Newman black holes: revisiting the Dudley-Finley approximation

Black hole spectroscopy: from theory to experiment

Receipt and verification

First computed	2026-07-05T04:19:35.931634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6b254e82c4974c8991dbfb3f0f0217df8e12eba8ec0199060835ee8dd1564ed

Aliases

arxiv: 2109.13949 · arxiv_version: 2109.13949v1 · doi: 10.48550/arxiv.2109.13949 · pith_short_12: W2ZFJ2BMJF2M · pith_short_16: W2ZFJ2BMJF2MRGI5 · pith_short_8: W2ZFJ2BM

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/W2ZFJ2BMJF2MRGI5X6Z7B4BBPX \
  | 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: b6b254e82c4974c8991dbfb3f0f0217df8e12eba8ec0199060835ee8dd1564ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a59e120705333ed5f105f89e15d211ace7e6f037cce3483c7f8cf13f4403b6",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-09-28T18:00:06Z",
    "title_canon_sha256": "e734f9eb5b82b6f59eed30b2a8f8338f3b2593b70c6a5e91da519814d3dd17c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13949",
    "kind": "arxiv",
    "version": 1
  }
}