Pith Number

pith:ZC7DOBSX

pith:2019:ZC7DOBSXSHUOHO33FCQLT56JV4

not attested not anchored not stored refs pending

A model problem for quasinormal ringdown on asymptotically flat or extremal black holes

Claude Warnick, Dejan Gajic

arxiv:1910.08481 v2 · 2019-10-18 · math.AP · 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{ZC7DOBSXSHUOHO33FCQLT56JV4}

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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

1 paper in Pith

Pseudospectrum and black hole quasi-normal mode (in)stability

Receipt and verification

First computed	2026-07-05T03:22:31.481073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8be37065791e8e3bb7b28a0b9f7c9af04be90bb8c7563918ce3e063fb1680f9

Aliases

arxiv: 1910.08481 · arxiv_version: 1910.08481v2 · doi: 10.48550/arxiv.1910.08481 · pith_short_12: ZC7DOBSXSHUO · pith_short_16: ZC7DOBSXSHUOHO33 · pith_short_8: ZC7DOBSX

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/ZC7DOBSXSHUOHO33FCQLT56JV4 \
  | 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: c8be37065791e8e3bb7b28a0b9f7c9af04be90bb8c7563918ce3e063fb1680f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ac1a4e0475a165c74ec207d359c8410d2a54e26004d1ea33e7fc5eb558d5068",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-10-18T15:53:57Z",
    "title_canon_sha256": "170bf8d1b52f62293de931fa614ac3e1a7862880353527a0c40b8e627ddf4886"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.08481",
    "kind": "arxiv",
    "version": 2
  }
}