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with the unit-carrier and orthogonality constraints enforced in variation. The derivative order is one. All constants are common across the finite positive target set. The fractional powers are C2C^2, not C3C^3 at zero.

For tr=∣x−X∣2/L2t_r=|x-X|^2/L^2, take

v=(1+tr)−4,Z0=0,Zi=(xi−Xi)(1+tr)−5/L,n=npeakv2,e=eJωte0(x). v=(1+t_r)^{-4},\quad Z_0=0,\quad Z_i=(x_i-X_i)(1+t_r)^{-5}/L,\quad n=n_{\rm peak}v^2, \quad e=e^{J\omega t}e_0(x).

The prepared e0e_0 has zero spatial phase current and constant selected Gram descriptor. Every support residual and proper-time support derivative vanishes pointwise. Hence the full support variation, including its metric and projector variations, vanishes. The clock equations reduce to s=ωs=\omega, ∂μ(nuμ)=0\partial_\mu(nu^\mu)=0 and u⋅∂e=ωJeu\cdot\partial e=\omega Je. These are satisfied by the full preparation. On this branch the complete current and stress are

jμ=nuμ,Tμν=nωuμuν. j^\mu=nu^\mu,\qquad T^{\mu\nu}=n\omega u^\mu u^\nu.

They are branch identities: off-branch mass and support variations contribute to both. A full Lorentz transformation, including contraction of the profile and transformation of ZμZ_\mu, gives

Q=S,E=γSω,P=γSωV,E2−∣P∣2=(Sω)2,S=npeakπ5L102520. Q=S,\quad E=\gamma S\omega,\quad P=\gamma S\omega V,\quad E^2-|P|^2=(S\omega)^2, \qquad S=\frac{n_{\rm peak}\pi^5L^{10}}{2520}.

The density has ⟨r2⟩=5L2/2\langle r^2\rangle=5L^2/2 and all retained support components have finite unweighted squared norm. The support zero set on its positive smooth branch consists of translations of this profile. It has no positive global unweighted Hessian gap, since low-cost broad perturbations can move into the tail. Common npeak,Ln_{\rm peak},L fix one common SS, as supplied constitutive parameters rather than individual particle amplitude fits. The laboratory charge density is γn\gamma n, not the proper density nn.

Coupled Disturbance Cone

Covariance alone does not establish causal disturbances. On flat mass jets, let Y=(v,Zi)Y=(v,Z_i), Gαi=∂iYα/ω\mathsf G_{\alpha i}=\partial_iY_\alpha/\omega, b0=n/ωb_0=n/\omega, a=1/λa=1/\lambda, M=diag⁡(Mv,MZ,…,MZ)\mathsf M=\operatorname{diag}(M_v,M_Z,\ldots,M_Z) and C=diag⁡(γA,γBv2,…,γBv2)\mathsf C=\operatorname{diag}(\gamma_A,\gamma_Bv^2,\ldots,\gamma_Bv^2). The full quadratic variation includes the phase-induced support velocities yt−G∇θy_t-\mathsf G\nabla\theta. Its derivative-bearing Lagrangian is

L2pr=a2θt2+12(yt−G∇θ)TM(yt−G∇θ)−b02∣∇θ∣2−12∑i(∂iy)TC∂iy. \mathcal L_2^{\rm pr}=\frac a2\theta_t^2 +\frac12(y_t-\mathsf G\nabla\theta)^T\mathsf M (y_t-\mathsf G\nabla\theta) -\frac{b_0}{2}|\nabla\theta|^2 -\frac12\sum_i(\partial_i y)^T\mathsf C\partial_i y.

Horizontal carrier perturbations hh also have the nondegenerate first-order term n⟨Jh,ht⟩n\langle Jh,h_t\rangle. Using bi=∂iθ−2⟨J∂ie0,h⟩b_i=\partial_i\theta-2\langle J\partial_i e_0,h\rangle in the first-order reduction retains their coupling and removes derivatives of hh from the principal wave block. Their principal speed is zero; they are not discarded.

Positive energy follows when H=b0I−GTMG>0\mathsf H=b_0I-\mathsf G^T\mathsf M\mathsf G>0. For M−C>0\mathsf M-\mathsf C>0, the coupled cone is inside the unit light cone if

a≥b0+λmax⁡[GTMC(M−C)−1G]. a\ge b_0+\lambda_{\max} \left[\mathsf G^T\mathsf M\mathsf C (\mathsf M-\mathsf C)^{-1}\mathsf G\right].

The positive energy symmetrizer establishes a complete characteristic reduction, rather than only real roots of a determinant. The profile bound ∣∇Y∣2/n≤106/(npeakL2)|\nabla Y|^2/n\le106/(n_{\rm peak}L^2) gives one sufficient common choice:

Mv=MZ=npeakL2ωmin⁡212,γA=γB=Mv/4,λ=ωmin⁡2npeak,κ>0. M_v=M_Z=\frac{n_{\rm peak}L^2\omega_{\min}}{212},\qquad \gamma_A=\gamma_B=M_v/4,\qquad \lambda=\frac{\omega_{\min}}{2n_{\rm peak}},\qquad\kappa>0.

This proves local strong hyperbolicity of the linearized constrained system on compact positive-density regions of the exact branch. Lorentz boosts preserve its causal rays. Positive coefficients alone do not suffice: explicit controls have a positive-energy superluminal root and, separately, an imaginary characteristic pair. Vacuum, uniform tail estimates, generic nonlinear evolution and reciprocal scattering remain open. A changed density-weighted kinetic version improves normalized principal tail bounds but introduces coefficients singular at generic vacuum.

The same law applies to every active depth in the common ambient space; there is no exceptional depth-five result. The zero-frequency photon branch is outside this timelike massive construction. Occupied nested bands and constant participating energy are still separate requirements.

Test Against The Uniform Local Clock

The exact branch has h=ωn(x)h=\omega n(x), so its local action density varies. It does not obey a constant-σ0\sigma_0 law Ωlocal=h/σ0\Omega_{\rm local}=h/\sigma_0 with one spatially uniform frequency. This is a substantial difference, not a negligible tail correction. Under its normalized energy measure, z=(1+r2/L2)−1z=(1+r^2/L^2)^{-1} has density 105z2(1−z)4105z^2(1-z)^4; the proposed local rate is proportional to z8z^8. Optimizing its normalization, the largest energy fraction within relative tolerance δ\delta of any local rate is

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