Phase H2 — Four blind spears (B1–B4) Tier-B + pre-reg freeze

§0 Easy guide — why these four?

History remembers experiments that could have killed a theory and didn’t (Eddington 1919). Phase H2 freezes four numbers already derived in SPT, with dates and kill rules, so the programme is Popperian — not a post-diction factory.

• B1 Flavour CP — neutrino CP phase freezes at 270°; DUNE will settle it.
• B2 Gravitational-wave tilt — bounce spectrum n_T=3/13, same shell as weak mixing tree.
• B3 Dark matter — mass ~60 GeV + σ_SI band; LZ can exclude the window.
• B4 Cosmo↔CKM lock — Hubble h and Cabibbo λ share S₄₀ so h/λ=3 forever at shell level.

§1 Scoreboard (Tier-B)

§2 Pre-registration freeze H2-PREREG-v1

Freeze-ID : H2-PREREG-v1
Date GMT+7: 20/07/2026
Canonical : H2-PREREG-v1|20/07/2026|B1:3pi/2=270|B2:3/13|B3:d=36-1/8;f_DM=1/16|B4:h/l=3;27/40;9/40
SHA256-16 : (printed by script each run — recompute from canonical string)

Rule: after unblinding, PASS or FAIL only. No retuning of forms.

Run python scripts/spt_blind_h2_tier_b.py to reprint the freeze hash and re-assert all EXACT cores.

§3 B1 — δ_CP = 270° (plain + technical)

Plain. Neutrino mixing has a CP phase. SPT freezes it at the bottom of the unit circle: 3π/2 = 270° (Law 48, Z₂_DA family). NuFIT NH central ~230°±50° still overlaps 270° at ~0.8σ — that is status, not a fit.

Kill. DUNE (+HK) settles ~90° or ~0° at >5σ, or a high-σ central value far outside the soft [240,300]° 3σ language band.

§4 B2 — n_T = 3/13

Plain. A bouncing cosmos imprints a mildly blue stochastic GW tilt n_T = 3/13 ≈ 0.231 — the same rational as tree sin²θ_W (Map F freeze family I2). Inflation wants ~0; SMBH background wants 2/3.

n_T = (Q₃ − 5)/(Q₃ + 5) = 3/13
I2: n_T ≡ sin²θ_W^{tree} = 3/13   EXACT
Pre-reg band: [0.18, 0.28]

Kill. Multi-band PTA+LISA+ET prefer primordial tilt ~0 or 2/3 over 3/13 at high significance.

§5 B3 — Dark matter mass + σ_SI

Plain. DM lives on cascade shell 36 (paired with the EW VEV shell): depth 36 − 1/8 = 35.875 EXACT, also C(7,4)+(Q₃−1)/Q₃. Factor f_DM = 1/16. Cosmology share Ω_DM = 35/128 EXACT. Pre-reg kill bands (what LZ is asked to test): mass [30, 120] GeV, σ_SI [5×10⁻⁴⁹, 5×10⁻⁴⁶] cm², central OOM ~4×10⁻⁴⁷. Honest: a raw M_Pl·e^{−d} scheme prints ~640 GeV / ~10⁻⁴¹ cm² — that absolute conversion is OPEN/scheme, not the freeze.

d_DM/d₀ = 36 − 1/Q₃ = 35.875
         = C(7,4) + (Q₃−1)/Q₃     EXACT dual (Law 66)
f_DM     = Q₃/Q₇ = 1/16           EXACT
Ω_DM     = C(7,4)/Q₇ = 35/128     EXACT
PRE-REG  m ∈ [30, 120] GeV
         σ_SI ∈ [5e-49, 5e-46] cm² · central OOM ~ 4e-47
OPEN     absolute M_Pl·exp(−d) prefactor / unit scheme

Kill. LZ/XLZD exclude the entire pre-reg σ band at the pre-reg mass window, or a firmly measured mass peak outside [30, 120] GeV at >5σ.

§6 B4 — h/λ = 3

Plain. Cosmology’s h_Planck = 27/40 and CKM’s Cabibbo λ = 9/40 live in the same box S₄₀=40. Ratio exactly 3. If future data force h and λ to drift independently, the Map F shell story dies.

λ = 9/(Q₃+Q₅) = 9/40
h = 3(Q₃+1)/(Q₃+Q₅) = 27/40
h/λ = 3  EXACT
OUTPUT: λ Δ≡0% vs PDG 0.22500; h Δ~0.15% vs Planck 0.674

§7 Cross-links (one package)

• I1: sin²θ₁₂ − sin²θ_W = 1/13 (same W=13 as B2).
• I2: n_T ≡ 3/13 ≡ tree θ_W (B2).
• A3: h/λ = 3 (B4).
• Shell 36: DM depth and EW VEV depth are paired ±… (B3 ↔ Law 55).

§8 Reproduce offline

pip install sympy numpy && python3 scripts/spt_blind_h2_tier_b.py && python3 scripts/spt_blind_predictions_registry.py

§9 Bottom line