Pith Number

pith:KYSV5IZH

pith:2025:KYSV5IZHKGQAL4PQL4KPRCUEJ3

not attested not anchored not stored refs pending

Null geodesics, causal structure, and matter accretion in Lorentzian-Euclidean black holes

Emmanuele Battista, Salvatore Capozziello, Silvia De Bianchi

arxiv:2507.08431 v1 · 2025-07-11 · 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{KYSV5IZHKGQAL4PQL4KPRCUEJ3}

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

10 papers in Pith

Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity

Regular black hole solutions and the quark chemical potential at the QCD phase transition

Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity

Boundary-only weak deflection angles from isothermal optical geometry

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes

Receipt and verification

First computed	2026-07-05T11:35:38.062907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56255ea32751a005f1f05f14f88a844ee59441c0e5f13a2973a69069e20f80d1

Aliases

arxiv: 2507.08431 · arxiv_version: 2507.08431v1 · doi: 10.48550/arxiv.2507.08431 · pith_short_12: KYSV5IZHKGQA · pith_short_16: KYSV5IZHKGQAL4PQ · pith_short_8: KYSV5IZH

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/KYSV5IZHKGQAL4PQL4KPRCUEJ3 \
  | 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: 56255ea32751a005f1f05f14f88a844ee59441c0e5f13a2973a69069e20f80d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a481aa90bd09e5af4d64838fd5246cd8cd21f3b42eb9466cfa10bec972906e9",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-07-11T09:17:08Z",
    "title_canon_sha256": "39908ea5758394a7f0a4a507ec7e28c307e561f134689c36eba141a6475ebec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.08431",
    "kind": "arxiv",
    "version": 1
  }
}