Partial sums of Rudin-Shapiro --- deterministic random walk with flat spectral density
Standard analysis sees: smooth / autocorrelated; long-range memory (persistent); strongly periodic; volatility-clustering (bursty); monofractal. The atlas finds no named structure, but the source is distinctively extreme on Dodecagonal (Stampfli):pisot_triplet_coherence (+4.1z) — beyond what the standard bank predicts for it.
Dodecagonal (Stampfli):pisot_triplet_coherence | +4.1z | bank-miss 1.0σ |
H3 Icosahedral:nn_enrichment | +3.0z | bank-miss 3.2σ |
Hölder Regularity:holder_min | +2.5z | bank-miss 2.7σ |
Laplacian:gradient_curvature_anticorrelation | +2.4z | bank-miss 1.9σ |








_(centered)/signed_log_z/Rudin-Shapiro.png)
_(centered)/xy_path/Rudin-Shapiro.png)

/barcode/Rudin-Shapiro.png)
/d_curve/Rudin-Shapiro.png)








/phi_spectrum/Rudin-Shapiro.png)










/default/Rudin-Shapiro.png)
/default/Rudin-Shapiro.png)


| Nearest neighbor | Distance | |
|---|---|---|
| Mertens Function | 3.02 | |
| Hilbert Walk | 3.72 | cross-domain |
| Brownian Walk | 3.73 | cross-domain |
Catch24 › Catch24:PD_PeriodicityWang_th0_01 | rank 3/298 | 3529.8000 |
Catch24 › Catch24:CO_FirstMin_ac | rank 4/298 | 6455.5333 |
Catch24 › Catch24:CO_f1ecac | rank 5/298 | 2305.0053 |
Catch24 › Catch24:CO_Embed2_Dist_tau_d_expfit_meandiff | rank 297/298 | 0.0000 |
Chladni › Chladni:domain_ks_exponential | rank 3/298 | 0.7272 |
D4 Triality › D4 Triality:edge_ortho_polarity | rank 2/298 | 0.7570 |
Dodecagonal (Stampfli) › Dodecagonal (Stampfli):pisot_triplet_coherence | rank 5/298 | 0.5402 |
Hölder Regularity › Hölder Regularity:holder_min | rank 1/298 | 1.0000 |
Inflation (Substitution) › Inflation (Substitution):discrepancy | rank 5/298 | 23.0286 |
Laplacian › Laplacian:gradient_curvature_anticorrelation | rank 1/298 | 1.0000 |
Möbius-S³ › Möbius-S³:phi_return_cv | rank 5/298 | 4.9571 |
Navier-Stokes › Navier-Stokes:ess_quality | rank 297/298 | -0.0012 |
Symplectic › Symplectic:phase_reflection_symmetry | rank 4/298 | 0.9983 |