Physical premise (IDWT): Physical spacetime has infinitely many ordinary spatial dimensions plus time. Matter occupies up to ten spatial dimensions; all remaining spatial directions are unbound for every particle. Depth counts a pattern's bound spatial involvement within that space. “Observed” and “unobserved” describe an observer's access, not different kinds of dimension. Older projective and nested-geometry calculations below retain their additional hypotheses; they do not establish a separate physical manifold or compactified direction. See spatial meaning and mathematical scope.

Summary: Research record, section 44: Minimal self-adjoint unobserved-visible lock with exactly zero relaxed backreaction.

Provenance

Preserved from interaction notebook section 44, recorded 2026-09-05 and corrected 2026-09-06. Original sequence contents. This is an exploratory research record, not an independently established V2 result. Read the related later audits before using an intermediate conclusion.

44. Minimal self-adjoint unobserved-visible lock with exactly zero relaxed backreaction

Choose the local observer-relative coordinate grouping

V6=O⊕H≅R3⊕R3 V_6=O\oplus H\cong\mathbb R^3\oplus\mathbb R^3

within six ordinary spatial dimensions of the same kind. This is not an inherent electron split. Additionally assume an orthogonal link

Q:H→O,Q∈SO(3). Q:H\to O,\qquad Q\in SO(3).

For relative coordinates u∈Ou\in O and h∈Hh\in H, consider

Vlock(u,h)=κ2∥h−QTu∥2,κ>0. \boxed{ V_{\rm lock}(u,h)=\frac{\kappa}{2}\|h-Q^Tu\|^2,\qquad \kappa>0. }

Its Hessian is

Klock=κ(I−Q−QTI). \boxed{ K_{\rm lock}=\kappa \begin{pmatrix} I&-Q\\ -Q^T&I \end{pmatrix}. }

Because QTQ=QQT=IQ^TQ=QQ^T=I, this operator is self-adjoint and positive semidefinite. The explicit symbolic check gives

rank⁡Klock=3, \operatorname{rank}K_{\rm lock}=3,

and

spec⁡Klock={0,0,0,2κ,2κ,2κ}. \boxed{ \operatorname{spec}K_{\rm lock}=\{0,0,0,2\kappa,2\kappa,2\kappa\}. }

The zero eigenspace is exactly

h=QTu. \boxed{h=Q^Tu.}

Thus the interaction does not trap common motion; it penalizes only visible-unobserved disagreement.

44.1 Exact Schur cancellation

With

A=κI,B=−κQ,C=−κQT,D=κI, A=\kappa I,\quad B=-\kappa Q,\quad C=-\kappa Q^T,\quad D=\kappa I,

the relaxed visible correction is

A−BD−1C. A-BD^{-1}C.

Since

BD−1C=(−κQ)(κ−1I)(−κQT)=κQQT=κI, BD^{-1}C =(-\kappa Q)(\kappa^{-1}I)(-\kappa Q^T) =\kappa QQ^T =\kappa I,

one obtains the exact identity

A−BD−1C=0. \boxed{A-BD^{-1}C=0.}

Therefore if

K6=(Kobs+κI−κQ−κQTκI), K_6= \begin{pmatrix} K_{\rm obs}+\kappa I&-\kappa Q\\ -\kappa Q^T&\kappa I \end{pmatrix},

then unobserved relaxation gives

Keff=Kobs. \boxed{K_{\rm eff}=K_{\rm obs}.}

Strong six-dimensional locking and an exactly unchanged reduced static law are therefore mathematically compatible.

44.2 Dynamical relative mode

With equal unit kinetic normalization and

r=h−QTu, r=h-Q^Tu,

the equations give

r¨+2κr=0, \boxed{\ddot r+2\kappa r=0,}

so

ωlock2=2κ. \boxed{\omega_{\rm lock}^2=2\kappa.}

The collective locked coordinate is a zero mode at this order.

44.3 Status

This structure is now algebraically verified. It is not yet derived from the V2 master action. The remaining obligations are to derive the difference-norm term, determine κ\kappa, and explain how a free electron pair obtains QQ without borrowing the nucleus-selected frame.