Pith Number

pith:5XNXWMBZ

pith:2021:5XNXWMBZZMLCS63QM3TCXI5LLP

not attested not anchored not stored refs pending

Extraction of energy from an extremal rotating electrovacuum black hole: Particle collisions in the equatorial plane

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

arxiv:2109.04477 v2 · 2021-09-09 · 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{5XNXWMBZZMLCS63QM3TCXI5LLP}

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

Influence of external magnetic fields on charged particle motion around a Schwarzschild-like black hole

Receipt and verification

First computed	2026-07-05T04:00:57.029454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eddb7b3039cb16297b7066e62ba3ab5be99469f5ee41d1083fac19cad2b50e6b

Aliases

arxiv: 2109.04477 · arxiv_version: 2109.04477v2 · doi: 10.48550/arxiv.2109.04477 · pith_short_12: 5XNXWMBZZMLC · pith_short_16: 5XNXWMBZZMLCS63Q · pith_short_8: 5XNXWMBZ

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/5XNXWMBZZMLCS63QM3TCXI5LLP \
  | 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: eddb7b3039cb16297b7066e62ba3ab5be99469f5ee41d1083fac19cad2b50e6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14a48ff1e3c8853365c8c2db5170d21ecccdc93ab94df3eb9f3986d715514fa3",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-09-09T18:00:00Z",
    "title_canon_sha256": "778ce904294af80e5ff9d6ad7e44ebb7b5407113a3c84dbe860bf68a31dfc149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04477",
    "kind": "arxiv",
    "version": 2
  }
}