Sprott case B --- simplest known dissipative chaotic flow with quadratic nonlinearity: dx/dt=yz, dy/dt=x-y, dz/dt=1-xy. Strange attractor with Kaplan-Yorke dimension ≈ 2.01
Standard analysis sees: red spectrum (low-frequency / 1-over-f power). The atlas finds no named structure, but the source is distinctively extreme on Bispectrum:coupling_frequency_centroid (+2.5z) — beyond what the standard bank predicts for it.
Bispectrum:coupling_frequency_centroid | +2.5z | bank-miss 1.8σ |








_(centered)/signed_log_z/Sprott-B.png)
_(centered)/xy_path/Sprott-B.png)

/barcode/Sprott-B.png)
/d_curve/Sprott-B.png)








/phi_spectrum/Sprott-B.png)










/default/Sprott-B.png)
/default/Sprott-B.png)


| Nearest neighbor | Distance | |
|---|---|---|
| EEG Seizure | 3.28 | cross-domain |
| EEG Eyes Closed | 3.43 | cross-domain |
| EEG Eyes Open | 3.69 | cross-domain |
Ammann-Beenker (Octagonal) › Ammann-Beenker (Octagonal):convergent_profile | rank 3/298 | 0.9325 |
Bispectrum › Bispectrum:coupling_frequency_centroid | rank 4/298 | 0.6669 |
Hölder Regularity › Hölder Regularity:holder_mean | rank 3/298 | 1.0081 |