Pith Number

pith:K755LKBR

pith:2008:K755LKBRXCDM3YJS7RFQDDLMKI

not attested not anchored not stored refs pending

Origin of Intense Magnetic Fields Near Black Holes Due to Non-Minimal Gravitational-Electromagnetic Coupling

Rafael S. de Souza, Reuven Opher

arxiv:0804.4895 v2 · 2008-04-30 · 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{K755LKBRXCDM3YJS7RFQDDLMKI}

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	2026-05-18T04:09:54.712602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57fbd5a831b886cde132fc4b018d6c520d1363f49cd71de15d405c80f997dd06

Aliases

arxiv: 0804.4895 · arxiv_version: 0804.4895v2 · doi: 10.48550/arxiv.0804.4895 · pith_short_12: K755LKBRXCDM · pith_short_16: K755LKBRXCDM3YJS · pith_short_8: K755LKBR

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/K755LKBRXCDM3YJS7RFQDDLMKI \
  | 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: 57fbd5a831b886cde132fc4b018d6c520d1363f49cd71de15d405c80f997dd06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f68589e6caf54caf879531cc9c87a40285f6cea85076d700976f6c9f45c16ca7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-30T19:54:12Z",
    "title_canon_sha256": "24899792b829c6ff17e8efa9f8a520b8802470a0121c50d4c29f998e99efd0b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4895",
    "kind": "arxiv",
    "version": 2
  }
}