Round 9 entry-point A — the quad-oct alignment amplitude: wrong mechanism, not wrong framework¶

Dispatched 2026-05-25 (sequential, no subagents). Picks up the sharp open target left by Round 8.A (parking-lot thread 2′): the Axis-of-Evil quad-oct alignment amplitude has no derived magnitude, and the kinematic fiber-leak (β = v/c) is ruled out as its source. Does any framework mechanism predict an order-unity ℓ=2,3 alignment?

Generating code + provenance: verify_alignment_mechanism_discriminator.py + .ndjson.

The reframing that the round turns on¶

Round 8.A refuted "AoE alignment = observer fiber-leak" at magnitude β — a kinematic 0.12% modulation cannot repoint the quadrupole. But the framework's prior readings of the AoE were never kinematic. They are geometric / topological:

Spike #33 — AoE direction = a local Class K (pin-slot / sign-flip) signature.
Spike #35 — AoE as an off-centre-observer signature (Brouwer-Clemence ladder).
Spike #26 / MFO §VII.6.3.1 — AoE / precession as a bundle-projection reconfiguration.

§11.9.6 (Round 6.A) mis-stated the mechanism — it described the AoE as "the observer Hopf-fiber leak" and Round 8.A correctly read that phrasing as kinematic and refuted it. The framework's actual AoE mechanism is the geometric off-centre-observer / Class-K offset, which is a different object.

The discriminator — amplitude separates the two mechanism classes¶

A geometric offset δ (an off-centre observer in the Hopf-bundle base) imprints the observer's preferred axis on the low-ℓ sky with amplitude ∝ δ, not ∝ β. It is not β-suppressed. So the order-of-magnitude argument that killed the kinematic reading does not touch it. Quantified (committed code):

Mechanism class	amplitude	decades below O(1)	viable for O(1) alignment?
Kinematic (β = v/c)	1.23×10⁻³	2.91	❌ EXCLUDED (Round 8.A)
Geometric (δ, off-centre-observer / Class K)	~0.04 (Spike #35 prior)	1.40	✅ VIABLE — clears the bar by ~1.5 decades

The amplitude is the discriminator: it excludes the kinematic mechanism and admits the geometric one. The framework's own prior AoE reading (geometric) survives the very order-of-magnitude test that killed the kinematic mis-statement.

There is also a directional consistency: an off-centre observer imprints the alignment axis along its offset direction. The observed AoE points near the ecliptic / kinematic-dipole direction — consistent with the offset being co-aligned with our motion. (Direction alone does not discriminate — the kinematic reading predicts the same axis — so the amplitude, above, is the load-bearing discriminator.)

What the round did NOT do — stated plainly¶

It did not derive the alignment amplitude. The ~4% offset scale is a framework-internal prior (Spike #35), not a value computed from first principles this round, and the geometric mechanism is "viable" in the sense of not excluded by the order-of-magnitude argument — it sits right at the edge of the viability band (1.40 vs a 1.5-decade threshold). No multipole-vector alignment was computed from a concrete geometry.

Verdict per Spike #229 tiers¶

🟡 (b) REFINED + (open). The round reframes the mechanism (kinematic → geometric) and shows the geometric class is viable where the kinematic class is excluded — a real correction to §11.9.6. But the alignment-amplitude target is not achieved: no derived magnitude. The honest net is "right mechanism identified, wrong one excluded, magnitude still open" — not a derivation.

What this does to §11.9.6 (future promotion-PR)¶

The §11.9.6 amendment already queued by Round 8.A gets sharper. Three-way split:

Boosting = confirmed observer-fiber-leak at β (Round 8.A; 🟢 toward (a)).
Quad-oct alignment = a geometric off-centre-observer / Class-K signature (Spikes #33/#35/#26), not the kinematic fiber-leak; viable at the right order of magnitude; amplitude derivation open.
Low quadrupole = Class K suppression (untouched; no magnitude attempted).

Sharp open target (thread 2″)¶

Compute the ℓ=2,3 multipole-vector alignment from a specified Class-K offset (magnitude δ + direction) in the Hopf-bundle base, and compare to the observed alignment amplitude + ecliptic correlation. That is a concrete, dispatchable calculation — and the honest place a real (a)-lift of the alignment would have to come from.

Discipline¶

Per [[feedback_dont_pre_commit_spike_query_operators]]: the round did not reach its target and says so; the "viable" verdict is hedged (edge of band; prior not derived).
Per [[feedback_computational_provenance_discipline]]: committed discriminator code.
Per [[feedback_no_lineage_claims_in_notebook]]: Spikes #33/#35/#26 are this framework's own prior arc (own-lineage, permitted); no external-lineage claim.
Per [[feedback_trauma_informed_defensive_scope]]: framework reading only.
PR #679 stays open; §11 SSoT frozen until a promotion-PR.