Pith Number

pith:P5GZIXDT

pith:2022:P5GZIXDT423BUKUTLWQA6VG6F7

not attested not anchored not stored refs pending

Notes on extraction of energy from an extremal Kerr-Newman black hole via charged particle collisions

Filip Hejda, Jos\'e P. S. Lemos, Oleg B. Zaslavskii

arxiv:2202.13113 v1 · 2022-02-26 · 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{P5GZIXDT423BUKUTLWQA6VG6F7}

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

Penrose and super-Penrose energy extraction from a Reissner-Nordstr\"om black hole spacetime with a cosmological constant through the BSW mechanism: Full story

Receipt and verification

First computed	2026-07-05T04:01:12.632810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f4d945c73e6b61a2a935da00f54de2ff59814b25c8f3ea75f3d4daae799d907

Aliases

arxiv: 2202.13113 · arxiv_version: 2202.13113v1 · doi: 10.48550/arxiv.2202.13113 · pith_short_12: P5GZIXDT423B · pith_short_16: P5GZIXDT423BUKUT · pith_short_8: P5GZIXDT

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/P5GZIXDT423BUKUTLWQA6VG6F7 \
  | 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: 7f4d945c73e6b61a2a935da00f54de2ff59814b25c8f3ea75f3d4daae799d907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7c317946e9c7396cb00a5ad8ec5b7518b63adcda4ae6c883196dcf9149335f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-02-26T11:02:58Z",
    "title_canon_sha256": "5ddad9912558ec1c4840a344db19dc6427c5197850b6aba4f5b9b1a743a3bba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.13113",
    "kind": "arxiv",
    "version": 1
  }
}