Pith Number

pith:QH44HOCZ

pith:2020:QH44HOCZHTT6UWRQ7HRKBLSVGH

not attested not anchored not stored refs pending

Electromagnetic-gravitational perturbations of Kerr-Newman spacetime: the Teukolsky and Regge-Wheeler equations

Elena Giorgi

arxiv:2002.07228 v2 · 2020-02-13 · math.AP · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QH44HOCZHTT6UWRQ7HRKBLSVGH}

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

1 paper in Pith

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

Receipt and verification

First computed	2026-07-05T01:42:13.233614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f9c3b8593ce7ea5a30f9e2a0ae5531e7074d5bd143464102c7d88162925a40

Aliases

arxiv: 2002.07228 · arxiv_version: 2002.07228v2 · doi: 10.48550/arxiv.2002.07228 · pith_short_12: QH44HOCZHTT6 · pith_short_16: QH44HOCZHTT6UWRQ · pith_short_8: QH44HOCZ

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/QH44HOCZHTT6UWRQ7HRKBLSVGH \
  | 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: 81f9c3b8593ce7ea5a30f9e2a0ae5531e7074d5bd143464102c7d88162925a40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69b1a55e89aa568e4e38c15b08fa1baa8dd0d25bd2888648b71b12cef46ecfcb",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2020-02-13T19:39:15Z",
    "title_canon_sha256": "4ca79beb2e8f1072009e9221d5c3339422d0a29ed9e4504b7c167ab16ac7258e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.07228",
    "kind": "arxiv",
    "version": 2
  }
}