{
  "version": "2026-05-05",
  "description": "33-facet audit bins (19 PASS / 13 NEUTRAL / 1 FAIL), May 2026 BAO null-geometry revision. Each row states vs_baseline (ΛCDM, Einstein GR, SM, or combined) and dct_contrast: what distinguishes the DCT prediction or falsification mode from that baseline. Links: cluster paper, observable page, /files/code/ scripts.",
  "facets": [
    {
      "id": "PASS-01",
      "name": "Homogeneous background BAO / radial null χ(z)",
      "verdict": "PASS",
      "notes": "P(t) cancels in radial photon nulls; comoving χ(z) unchanged versus matched expansion history.",
      "paper_code": "DCT-BAO-01",
      "paper_slug": "dct-bao-01",
      "observable_slug": "bao",
      "primary_scripts": [
        "exploratory/bao_conformal_null_check.py",
        "dct_desi_bao_test.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM + Einstein GR (homogeneous BAO / χ(z) with matched H(z))",
      "dct_contrast": "Retracted audit map inserted a uniform comoving D_M ∝ 1/√P₀ factor; homogeneous P(t) cancels from radial null geodesics. That is not an extra fitted degree of freedom in baseline ΛCDM and is geometrically distinct from standard ruler fitting."
    },
    {
      "id": "PASS-02",
      "name": "Hulse–Taylor binary pulsar orbital decay",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "hulse-taylor",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (quadrupole radiation damping)",
      "dct_contrast": "Radiation sector uses Brans–Dicke ω fixed by the master identity (ω₀=50,037 from P₀, c_BD); not a two-parameter scalar–tensor fit with free ω."
    },
    {
      "id": "PASS-03",
      "name": "Double pulsar PSR J0737–3039 (orbital + PK parameters)",
      "verdict": "PASS",
      "notes": "Single facet bin for the J0737 system (orbit + post-Keplerian suite).",
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "double-pulsar-7pk",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (binary pulsar PK + orbital timing)",
      "dct_contrast": "Full J0737 suite tied to the same locked-ω Brans–Dicke sector as PASS-02; distinguishes DCT from unconstrained modified-gravity templates."
    },
    {
      "id": "PASS-04",
      "name": "MICROSCOPE equivalence principle (η)",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "microscope-eta-ep",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (exact Nordtvedt η=0 in pure GR)",
      "dct_contrast": "Finite Nordtvedt parameter at the PPN values implied by (γ,β) locked to ω₀; EP observables are not the exact GR null once the scalar tie is fixed."
    },
    {
      "id": "PASS-05",
      "name": "GW170817 gravitational-wave speed",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "gw170817-cgw",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (tensor graviton, c_GW=c)",
      "dct_contrast": "Metric subclass forces luminal tensors; excludes coherence-field modified dispersion that would split from baseline GR at GW170817 precision."
    },
    {
      "id": "PASS-06",
      "name": "GWTC-3 BBH population / ringdown no-hair consistency",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "bh-no-hair",
      "primary_scripts": [
        "gravity_tests.py",
        "ligo_gravitational_wave_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (Kerr no-hair, QNM ringdown)",
      "dct_contrast": "No-scalar-hair inheritance with ω locked; LF constraints differ from generic Brans–Dicke where a light scalar can regenerate hair."
    },
    {
      "id": "PASS-07",
      "name": "GW170817 neutron-star tidal deformability",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "gw170817-tidal",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (tidal Love numbers)",
      "dct_contrast": "Tidal deformability stays on the GR+EOS band tested by GW170817; constrains scalar channels that would materially move Λ at fixed masses."
    },
    {
      "id": "PASS-08",
      "name": "Lunar laser ranging — Nordtvedt η",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "nordtvedt-eta",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (η≡0)",
      "dct_contrast": "Same finite-η PPN target as MICROSCOPE row but LLR-specific cadence; still fixed by (γ,β) from ω₀, not fit independently."
    },
    {
      "id": "PASS-09",
      "name": "Lunar laser ranging — Ī/G",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "llr-gamma",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (Ī/G=0)",
      "dct_contrast": "Brans–Dicke time evolution of G at amplitude set by locked constants, not a phenomenological Ī/G sweep."
    },
    {
      "id": "PASS-10",
      "name": "Vessot GP-A gravitational redshift",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "gp-a-redshift",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (gravitational redshift in Schwarzschild)",
      "dct_contrast": "Classical redshift test with matter on the physical conformal metric; same null geodesics as GR for this observable class."
    },
    {
      "id": "PASS-11",
      "name": "Pound–Rebka redshift",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "pound-rebka",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (gravitational redshift)",
      "dct_contrast": "Laboratory redshift check as for GP-A; ontology matter on Pg̃ versus bare GR, not an added fitted potential parameter."
    },
    {
      "id": "PASS-12",
      "name": "Atom interferometry (Newtonian acceleration)",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SPI-01",
      "paper_slug": "dct-spi-01",
      "observable_slug": "atom-interferometry-g",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Newtonian labs + Einstein GR weak field",
      "dct_contrast": "Atom interferometry tracks SPI-sector prediction with polytope-locked inputs; distinct from ad hoc fifth-force additions."
    },
    {
      "id": "PASS-13",
      "name": "GP-B geodetic precession",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "gp-b-geodetic",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (Lense–Thirring / geodetic precession)",
      "dct_contrast": "Frame-dragging and geodetic magnitudes from PPN (γ,β) tied to ω₀; not an independent free PPN fit per experiment."
    },
    {
      "id": "PASS-14",
      "name": "Inner-planet perihelion precession (PPN suite)",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "perihelion-precession",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR (Shapiro + planetary perihelion)",
      "dct_contrast": "Inner-planet precession bounded by the same locked PPN stack as Cassini-class tests."
    },
    {
      "id": "PASS-15",
      "name": "CMB low-ℓ quadrupole amplitude",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-CMB-01",
      "paper_slug": "dct-cmb-01",
      "observable_slug": "cmb-low-quadrupole",
      "primary_scripts": [
        "cmb_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM Gaussian CMB template (large-scale ℓ)",
      "dct_contrast": "Low-ℓ quadrupole handled by the coherence-sector mechanism in DCT-CMB-01 rather than as a stand-alone stochastic draw with no structural link to P₀."
    },
    {
      "id": "PASS-16",
      "name": "Bullet Cluster lensing–baryon offset",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-DM-01",
      "paper_slug": "dct-dm-01",
      "observable_slug": "bullet-cluster",
      "primary_scripts": [
        "astrophysical_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM + collisionless dark matter interpretation",
      "dct_contrast": "Gas–lensing offset explained without particle DM via tie-field gradients + Yukawa interface; not the same microphysics as baseline ΛCDM halos."
    },
    {
      "id": "PASS-17",
      "name": "Gauge-sector conformal invariance at recombination (wall theorem)",
      "verdict": "PASS",
      "notes": "Dimensionless CMB observables at last scattering inherit SM structure; checked via conformal-wall pipeline.",
      "paper_code": "DCT-CMB-01",
      "paper_slug": "dct-cmb-01",
      "observable_slug": "conformal-wall-theorem",
      "primary_scripts": [
        "cmb_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Standard Model gauge sector + FLRW Einstein frame",
      "dct_contrast": "Four-dimensional conformal-wall theorem pins dimensionless SM/CMB ratios at recombination; differs from treating Jordan→Einstein as arbitrary rescaling of fitted SM parameters."
    },
    {
      "id": "PASS-18",
      "name": "Muon g−2 (Fermilab E989 closure)",
      "verdict": "PASS",
      "notes": null,
      "paper_code": "DCT-SM-01",
      "paper_slug": "dct-sm-01",
      "observable_slug": "muon-g-2",
      "primary_scripts": [
        "muon_g_minus_2_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Standard Model (data-driven a_μ prediction gap)",
      "dct_contrast": "Additive tie-field contribution fixed by (P₀,c_BD) closes the E989 gap without a dedicated new parameter tuned only to a_μ."
    },
    {
      "id": "PASS-19",
      "name": "Neutron-star maximum mass (J0740+6620, Shapiro delay)",
      "verdict": "PASS",
      "notes": "Strong-field TOV sector; DCT inherits GR + nuclear EOS band.",
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "ns-mmax-j0740",
      "primary_scripts": [
        "astrophysical_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR + nucleonic EOS (NICER / mass–radius)",
      "dct_contrast": "TOV band and Shapiro mass inherited through no-hair; falsifies branches that shift M_max while contradicting the locked weak-field PPN sector."
    },
    {
      "id": "NEUT-01",
      "name": "W boson mass",
      "verdict": "NEUTRAL",
      "notes": "At or below current PDG tension for strict PASS/FAIL binning.",
      "paper_code": "DCT-SM-01",
      "paper_slug": "dct-sm-01",
      "observable_slug": "w-boson-mass",
      "primary_scripts": [
        "particle_physics_tests.py"
      ],
      "empirical_harness": "T_PARTICLE_STRUCTURE",
      "vs_baseline": "Standard Model electroweak fits (PDG)",
      "dct_contrast": "W mass tracks the same SM-facing tension catalogued in PDG-era fits; not a separate DCT-only high-σ discriminator in this bin."
    },
    {
      "id": "NEUT-02",
      "name": "Fine-structure constant α (null + quasar variation)",
      "verdict": "NEUTRAL",
      "notes": "Conformal-wall protects local α; spatial-gradient claims remain qualitatively contested in the literature.",
      "paper_code": "DCT-SPI-01",
      "paper_slug": "dct-spi-01",
      "observable_slug": "inv-alpha",
      "primary_scripts": [
        "particle_physics_tests.py"
      ],
      "empirical_harness": "T_PARTICLE_STRUCTURE",
      "vs_baseline": "Standard Model local α + quasar spatial-drift literature",
      "dct_contrast": "Conformal-wall enforces local gauge coupling invariance; large-scale spatial-gradient claims remain disputed between surveys — not a clean split from baseline cosmology here."
    },
    {
      "id": "NEUT-03",
      "name": "Higgs sector (mass / couplings)",
      "verdict": "NEUTRAL",
      "notes": null,
      "paper_code": "DCT-SM-01",
      "paper_slug": "dct-sm-01",
      "observable_slug": "higgs-yukawa-running",
      "primary_scripts": [
        "particle_physics_tests.py"
      ],
      "empirical_harness": "T_PARTICLE_STRUCTURE",
      "vs_baseline": "Standard Model Higgs EFT + PDG masses",
      "dct_contrast": "Higgs couplings ride on the structural/particle sector without a private Higgs fit orthogonal to the SM baseline at current precision."
    },
    {
      "id": "NEUT-04",
      "name": "BAO sound horizon r_d drag scale",
      "verdict": "NEUTRAL",
      "notes": "Degeneracies with standard ruler calibration; not a sharp DCT-specific discriminator at background level.",
      "paper_code": "DCT-BAO-01",
      "paper_slug": "dct-bao-01",
      "observable_slug": "sound-horizon-rd",
      "primary_scripts": [
        "dct_desi_bao_test.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM acoustic scale r_d",
      "dct_contrast": "Homogeneous P(t) does not shift standard r_d at the null-χ level; discrimination moves to perturbation/cluster observables (see cluster papers)."
    },
    {
      "id": "NEUT-05",
      "name": "Planetary gravity multipoles / J₂ harmonic",
      "verdict": "NEUTRAL",
      "notes": "Solar-system quadrupole sector; binned as neutral in the headline 33-facet split.",
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "beta-ppn",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR solar multipoles + planetary interior models",
      "dct_contrast": "Solar-system β / J₂ band; any DCT shift is below the facet precision relative to GR-led ephemerides."
    },
    {
      "id": "NEUT-06",
      "name": "BBN helium-4 mass fraction Y_p",
      "verdict": "NEUTRAL",
      "notes": "SM BBN inheritance; not a standalone DCT discriminator.",
      "paper_code": "DCT-COS-01",
      "paper_slug": "dct-cos-01",
      "observable_slug": "helium4-abundance",
      "primary_scripts": [
        "cmb_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Standard Model big-bang nucleosynthesis",
      "dct_contrast": "Y_p prediction inherits SM BBN; failures would be shared SM issues, not an isolated DCT falsifier in this row."
    },
    {
      "id": "NEUT-07",
      "name": "EHT black-hole shadow diameter (M87* / Sgr A*)",
      "verdict": "NEUTRAL",
      "notes": "Agreement within current ring astrophysics / scattering systematics.",
      "paper_code": "DCT-SBD-01",
      "paper_slug": "dct-sbd-01",
      "observable_slug": "m87-polarisation",
      "primary_scripts": [
        "astrophysical_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Einstein GR Kerr imaging + plasma / scattering systematics",
      "dct_contrast": "Shadow diameter agreement within EHT systematic floors; DCT does not yet advertise a contrasting ring size at this precision."
    },
    {
      "id": "NEUT-08",
      "name": "Electron g−2",
      "verdict": "NEUTRAL",
      "notes": "DCT shift suppressed versus muon; experiment not yet at theory discriminating power in this binning.",
      "paper_code": "DCT-SM-01",
      "paper_slug": "dct-sm-01",
      "observable_slug": "electron-g-2",
      "primary_scripts": [
        "particle_physics_tests.py"
      ],
      "empirical_harness": "T_PARTICLE_STRUCTURE",
      "vs_baseline": "Standard Model QED (electron a_e)",
      "dct_contrast": "Tie-field contribution suppressed by m_e/m_μ; effectively the SM QED test at reported precision."
    },
    {
      "id": "NEUT-09",
      "name": "Large-scale cosmic dipole / spatial gradient puzzles",
      "verdict": "NEUTRAL",
      "notes": "Qualitative directional systematics (CMB kinematic dipole, quasar α-dipole tensions); no dedicated observable slug.",
      "paper_code": "DCT-COS-01",
      "paper_slug": "dct-cos-01",
      "observable_slug": null,
      "primary_scripts": [
        "particle_physics_tests.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Statistically isotropic ΛCDM + Copernican priors",
      "dct_contrast": "Large-scale directional anomalies and quasar-α dipole tensions are qualitative; literature is contested, so the row does not isolate DCT numerically."
    },
    {
      "id": "NEUT-10",
      "name": "Cold dark matter density Ω_DM h²",
      "verdict": "NEUTRAL",
      "notes": "Order-of-magnitude consistency only in this audit bin.",
      "paper_code": "DCT-DM-01",
      "paper_slug": "dct-dm-01",
      "observable_slug": "omega-m-h2",
      "primary_scripts": [
        "cosmological_tensions_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM (Ω_c h² bookkeeping)",
      "dct_contrast": "Dark-matter density tracked only at order-of-magnitude in this audit bin, not as a sharp parameter prediction unique to DCT."
    },
    {
      "id": "NEUT-11",
      "name": "BBN lithium-7 (shared SM tension)",
      "verdict": "NEUTRAL",
      "notes": "Inherited SM BBN problem unless a sharp DCT correction is isolated.",
      "paper_code": "DCT-COS-01",
      "paper_slug": "dct-cos-01",
      "observable_slug": "lithium7-primordial",
      "primary_scripts": [
        "cmb_analysis.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "Standard Model BBN (Spite plateau)",
      "dct_contrast": "Lithium problem is SM-BBN shared tension unless a dedicated DCT thermochemical correction is isolated."
    },
    {
      "id": "NEUT-12",
      "name": "Cassini PPN γ precision floor",
      "verdict": "NEUTRAL",
      "notes": "Consistent with DCT but does not yet separate from GR at designed precision.",
      "paper_code": "DCT-PPN-01",
      "paper_slug": "dct-ppn-01",
      "observable_slug": "cassini-gamma",
      "primary_scripts": [
        "gravity_tests.py"
      ],
      "empirical_harness": "T_PPN_GAMMA",
      "vs_baseline": "Einstein GR (γ−1=0 exactly)",
      "dct_contrast": "DCT predicts γ−1=−1/(ω₀+2); Cassini precision ties GR and DCT — separation awaits BepiColombo-class radio science."
    },
    {
      "id": "NEUT-13",
      "name": "Cosmic chronometers H(z) / naive uniform BEC multiplier",
      "verdict": "NEUTRAL",
      "notes": "Per-z Moresco compilation: mean ratio compatible with ΛCDM; rules out naive 1.084 uniform factor (see T_CC_NEUTRAL).",
      "paper_code": "DCT-COS-01",
      "paper_slug": "dct-cos-01",
      "observable_slug": null,
      "primary_scripts": [
        "dct_eddington_ratio_per_z.py"
      ],
      "empirical_harness": "T_CC_NEUTRAL",
      "vs_baseline": "ΛCDM distance-calibrated H(z)",
      "dct_contrast": "Per-z cosmic chronometers reject a naive uniform H_BEC/H_ΛCDM=1.084 narrative; the row does not by itself pick DCT over ΛCDM without shape information beyond this scalar diagnostic."
    },
    {
      "id": "FAIL-01",
      "name": "KiDS-Legacy 2025 S₈ cosmic shear",
      "verdict": "FAIL",
      "notes": "Canonical constant-P₀ growth predicts S₈ ≈ 0.776 vs 0.815 ± 0.018 (∼2σ).",
      "paper_code": "DCT-COS-01",
      "paper_slug": "dct-cos-01",
      "observable_slug": "kids-legacy-s8",
      "primary_scripts": [
        "cosmological_tensions_analysis.py",
        "audit_fails.py"
      ],
      "empirical_harness": null,
      "vs_baseline": "ΛCDM late-universe structure (KiDS-Legacy lensing)",
      "dct_contrast": "Constant-P₀ growth lowers S₈ versus KiDS-2025 without an extra tuned late-time parameter on that branch — a direct amplitude split from baseline ΛCDM lensing fits."
    }
  ]
}