Pith Number

pith:CJ7NH44F

pith:2013:CJ7NH44FIHS2VKQF4ZXLIBPNXZ

not attested not anchored not stored refs pending

Extracting black-hole rotational energy: The generalized Penrose process

A. Tchekhovskoy, E. Gourgoulhon, J.-P. Lasota, M. Abramowicz, R. Narayan

arxiv:1310.7499 v2 · 2013-10-28 · gr-qc · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CJ7NH44FIHS2VKQF4ZXLIBPNXZ}

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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

Influence of Observer Inclination and Spacetime Structure on Photon Ring Observables

Receipt and verification

First computed	2026-05-18T03:00:25.596424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

127ed3f38541e5aaaa05e66eb405edbe47f6c61ef7bf26d3fa65c03ea57d6cc7

Aliases

arxiv: 1310.7499 · arxiv_version: 1310.7499v2 · doi: 10.48550/arxiv.1310.7499 · pith_short_12: CJ7NH44FIHS2 · pith_short_16: CJ7NH44FIHS2VKQF · pith_short_8: CJ7NH44F

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/CJ7NH44FIHS2VKQF4ZXLIBPNXZ \
  | 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: 127ed3f38541e5aaaa05e66eb405edbe47f6c61ef7bf26d3fa65c03ea57d6cc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc284586b58aa46fec97f7ded4d32eeba2c7117ceb972b0e4cc09682bf4a00db",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-10-28T17:20:25Z",
    "title_canon_sha256": "5c3a0c375e2bd05a455ed5d045bd2e8d9ab5cfc979bf3a8ade06178ab25ce28a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7499",
    "kind": "arxiv",
    "version": 2
  }
}