Overseer ruled DIRECTION=A: fill the specification gap the frozen prereg
left on RQ2's per-circuit adversary sender-posterior, rather than
silently redefine the DV (B) or relabel a confirmatory test (C).
Proposes: adversary observes a circuit's exit-bridge/house and forms a
uniform posterior over the observation-consistent anonymity set A_i;
per-circuit H_i = Miller-Madow(log2 m_i), with S=2^H [Serjantov2002] and
d=H/log2 N [Diaz2002] as the cited normalizations. Makes RQ2-P1 (two-
sided ΔH) and RQ2-P3 (Spearman) computable OFFLINE from the immutable raw
records (per_circuit_seeds + deterministic assemble()).
Status PROPOSED — operator ratification pending. Pre-specified BLIND
(2026-07-20, battery running, zero RQ2 statistics computed) so this is
honest pre-registration completion, not HARKing. Frozen prereg untouched;
sign not presumed (honest-shrink reported with equal prominence).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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