Pith Number

pith:LRDPVN5R

pith:2026:LRDPVN5RPPUBXV53GMPZQ4IQ3D

not attested not anchored not stored refs resolved

Thin Accretion Disks around Rotating Charged Black Holes in an Effective Higher-Curvature Spacetime

Kourosh Nozari, Mohammad Hassani, Sara Saghafi

An effective higher-curvature parameter moves the ISCO inward and raises radiation flux and temperature in thin accretion disks around rotating charged black holes.

arxiv:2605.13797 v1 · 2026-05-13 · gr-qc · astro-ph.CO · hep-ph · hep-th

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\usepackage{pith}
\pithnumber{LRDPVN5RPPUBXV53GMPZQ4IQ3D}

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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.

Claims

C1strongest claim

Increasing the effective Gauss-Bonnet-like parameter alpha shifts the ISCO inward and enhances the disk's radiation flux and temperature, while charge suppresses these quantities.

C2weakest assumption

The spacetime is treated as a fixed phenomenological deformation of Kerr-Newman without deriving the metric from a consistent higher-curvature action or checking its stability and causality.

C3one line summary

An effective Gauss-Bonnet-like deformation of the Kerr-Newman metric moves the ISCO inward, raises radiative efficiency, flux, and temperature, while charge suppresses these quantities.

References

120 extracted · 120 resolved · 3 Pith anchors

[1] Carroll, S. M. (2019). Spacetime and geometry. Cambridge University Press 2019

[2] K. Schwarzschild, ¨Uber das Gravitationsfeld eines Massenpunktes nach der Einsteinschen Theorie, Sitzungsberichte der K¨ oniglich Preußischen Akademie der Wissenschaften (Berlin), 189–196 (1916) 1916

[3] Kerr, R. P. (1963). Gravitational field of a spinning mass as an example of algebraically special metrics. Physical review letters, 11(5), 237 1963

[4] Baumann, D. (2022). Cosmology. Cambridge University Press 2022

[5] G., Padilla, A., & Skordis, C 2012

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-18T02:44:15.557797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c46fab7b17be81bd7bb331f987110d8d666ec41e02fb594392089d7d9f22283

Aliases

arxiv: 2605.13797 · arxiv_version: 2605.13797v1 · doi: 10.48550/arxiv.2605.13797 · pith_short_12: LRDPVN5RPPUB · pith_short_16: LRDPVN5RPPUBXV53 · pith_short_8: LRDPVN5R

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/LRDPVN5RPPUBXV53GMPZQ4IQ3D \
  | 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: 5c46fab7b17be81bd7bb331f987110d8d666ec41e02fb594392089d7d9f22283

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd4aee43845d7c690a3a3976382619318ff2de5927f50be7b474f9117edb7a4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-13T17:19:24Z",
    "title_canon_sha256": "7d6b8d5cd6bf0ea2bb946602c1e23857e5b2a21772cec7adedfd954c89d4f395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13797",
    "kind": "arxiv",
    "version": 1
  }
}