MGH/Marquette ART channel. Real ICU arterial blood pressure (mmHg) at 360 Hz, 3 recordings concatenated. Sharp systolic upstroke + dicrotic notch on each cardiac cycle.
Standard analysis sees: red spectrum (low-frequency / 1-over-f power); low-complexity (predictable, not noise-like); time-irreversible (sharp rises, slow decay). The atlas finds no named structure, but the source is distinctively extreme on Navier-Stokes:cascade_asymmetry (+3.2z) — beyond what the standard bank predicts for it. It sits beside Tidal Gauge (SF) in the atlas (standard-bank rank 85) — a neighbor conventional features miss.
Navier-Stokes:cascade_asymmetry | +3.2z | bank-miss 1.6σ |
Septagonal (Danzer):z_primary | +3.2z | bank-miss 1.1σ |
AutoRegressive:ar_coef_9 | +2.9z | bank-miss 2.2σ |
Bispectrum:off_diagonal_ratio | -2.7z | bank-miss 1.5σ |
AutoRegressive:ar_coef_10 | -2.6z | bank-miss 1.1σ |








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| Nearest neighbor | Distance | |
|---|---|---|
| Tidal Gauge (SF) | 3.73 | cross-domain |
| Lorenz-96 N=4 F=16 | 3.95 | cross-domain |
| Temperature | 4.09 | cross-domain |
AutoRegressive › AutoRegressive:ar_coef_2 | rank 4/298 | 0.4500 |
Bispectrum › Bispectrum:coupling_frequency_centroid | rank 297/298 | 0.1641 |
Septagonal (Danzer) › Septagonal (Danzer):z_primary | rank 3/298 | 0.3124 |