Pith Number

pith:I7HFKRQ2

pith:2011:I7HFKRQ2JDF4LHSYC7ZEXZNXPQ

not attested not anchored not stored refs pending

Constructive proof of the Kerr-Newman black hole uniqueness including the extreme case

Reinhard Meinel

arxiv:1108.4854 v3 · 2011-08-24 · gr-qc · astro-ph.HE · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I7HFKRQ2JDF4LHSYC7ZEXZNXPQ}

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.

Receipt and verification

First computed	2026-05-18T04:04:43.533637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ce55461a48cbc59e5817f24be5b77c053266264d0112fd59238711b63190e1

Aliases

arxiv: 1108.4854 · arxiv_version: 1108.4854v3 · doi: 10.48550/arxiv.1108.4854 · pith_short_12: I7HFKRQ2JDF4 · pith_short_16: I7HFKRQ2JDF4LHSY · pith_short_8: I7HFKRQ2

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/I7HFKRQ2JDF4LHSYC7ZEXZNXPQ \
  | 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: 47ce55461a48cbc59e5817f24be5b77c053266264d0112fd59238711b63190e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3ef0739c19dba5006fdf5062a248ee4c04b8d96f70afb130fd1af6b4bddce18",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-08-24T14:42:18Z",
    "title_canon_sha256": "c63b2f3424ca7e8b8edf016f271c8237cd17c6d6bfe8f98adcc5b5123bbfccf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4854",
    "kind": "arxiv",
    "version": 3
  }
}