Pith Number

pith:KAJL5NID

pith:2015:KAJL5NIDLMCKMESAJTRTMVWEOV

not attested not anchored not stored refs pending

Energy extraction from boosted black holes: Penrose process, jets, and the membrane at infinity

Robert F. Penna

arxiv:1503.00728 v2 · 2015-03-02 · astro-ph.HE · 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{KAJL5NIDLMCKMESAJTRTMVWEOV}

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

General Boosted Black Holes: A First Approximation

Receipt and verification

First computed	2026-05-18T02:17:35.691684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5012beb5035b04a612404ce33656c4755adbf1f5e784f339601070e4f53c17be

Aliases

arxiv: 1503.00728 · arxiv_version: 1503.00728v2 · doi: 10.48550/arxiv.1503.00728 · pith_short_12: KAJL5NIDLMCK · pith_short_16: KAJL5NIDLMCKMESA · pith_short_8: KAJL5NID

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/KAJL5NIDLMCKMESAJTRTMVWEOV \
  | 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: 5012beb5035b04a612404ce33656c4755adbf1f5e784f339601070e4f53c17be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6df7b64c271169f3418b3a0eb80e5ff50c363f91632c8c0095754a905941d7df",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-02T21:00:13Z",
    "title_canon_sha256": "6035894d23629cd2f5f61220269bd54184d58bc738ffc73fbc71f6447d3e2a18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00728",
    "kind": "arxiv",
    "version": 2
  }
}