BHCodex/CITATION.cff at main · SNagy3/BHCodex · GitHub

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cff-version: 1.2.0
message: "If you use BHCodex in your research, please cite both the paper and the software."

title: "BHCodex: Fingerprint Classification of Regular Black Hole Models via the Joint Exterior-Interior ISCO Invariant and Kerr-Hayward Precision Forecasts"

authors:
  - family-names: Nagy
    given-names: Stephen
    affiliation: "Independent Research, Cleveland, Ohio, USA"
    orcid: "{ORCID: 0009-0000-2423-4483}"

version: "1.0"
date-released: "2026-03-21"
license: MIT
repository-code: "https://github.com/SNagy3/BHCodex"
doi: "10.5281/zenodo.19152410"

abstract: >
  BHCodex is a Python framework for classifying regular black hole models
  through a jointly computed exterior-interior ISCO invariant fingerprint.
  For each spherically symmetric regular metric, the framework computes
  K_norm(u) and C_norm(u) as functions of the regularization parameter u.
  The joint curve constitutes a model fingerprint anchored at the shared
  Schwarzschild point. The Fingerprint Slope Theorem (proved analytically)
  establishes that the fingerprint slope at the anchor is
  alpha_n = -4^n/(2n^2-n+1), independent of regularization coefficient.
  The framework extends to rotating spacetimes via the Kerr-Hayward metric,
  computing the required observational precision surface sigma_K(a*, u)
  for detecting regularization at any spin and mass scale.

keywords:
  - regular black holes
  - ISCO invariant
  - fingerprint classification
  - Hayward metric
  - Bardeen metric
  - Kerr-Hayward metric
  - singularity resolution
  - black hole physics
  - general relativity

references:
  - type: article
    title: "Fingerprint Classification of Regular Black Hole Models via the Joint Exterior-Interior ISCO Invariant and Kerr-Hayward Precision Forecasts"
    authors:
      - family-names: Nagy
        given-names: Stephen
    journal: "Physical Review D"
    year: 2026


  - type: software
    title: "BHRuler v2.1: Cross-scale black hole survey and gravitational unit toolkit"
    authors:
      - family-names: Nagy
        given-names: Stephen
    year: 2025
    doi: "10.5281/zenodo.18894798"
    repository-code: "https://github.com/SNagy3/BHRuler"

  - type: software
    title: "VIG-Framework v5: Interior volume growth of regular black holes"
    authors:
      - family-names: Nagy
        given-names: Stephen
    year: 2025
    repository-code: "https://github.com/SNagy3/VIG-Framework"