Pith Number

pith:UWN2TWK5

pith:2005:UWN2TWK522KNVOJPJJGYLO47FZ

not attested not anchored not stored refs pending

Electromagnetic extraction of energy from Kerr black holes

Isao Okamoto

arxiv:astro-ph/0506302 v1 · 2005-06-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UWN2TWK522KNVOJPJJGYLO47FZ}

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	2026-05-18T01:40:33.929247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a59ba9d95dd694dab92f4a4d85bb9f2e4d032023142033848e115c349c46e2e4

Aliases

arxiv: astro-ph/0506302 · arxiv_version: astro-ph/0506302v1 · doi: 10.48550/arxiv.astro-ph/0506302 · pith_short_12: UWN2TWK522KN · pith_short_16: UWN2TWK522KNVOJP · pith_short_8: UWN2TWK5

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/UWN2TWK522KNVOJPJJGYLO47FZ \
  | 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: a59ba9d95dd694dab92f4a4d85bb9f2e4d032023142033848e115c349c46e2e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6459dccdcca01c058a916f3eaeeb3211e361bb328c136ecbcd1e7c2be869ebf5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-14T12:04:08Z",
    "title_canon_sha256": "d7f7c72b7207704c358c8a82e02f2bba333fbdf5548143e2d8ac8c0d069d2567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506302",
    "kind": "arxiv",
    "version": 1
  }
}