MIT-BIH Arrhythmia DB, ventricular premature beats (VPB). 360 Hz; wide aberrant QRS complexes punctuating sinus rhythm.
Standard analysis sees: right-skewed; red spectrum (low-frequency / 1-over-f power); time-irreversible (sharp rises, slow decay); multifractal. The atlas finds no named structure, but the source is distinctively extreme on E8 Lattice:std_profile (+4.1z) — beyond what the standard bank predicts for it.
E8 Lattice:std_profile | +4.1z | bank-miss 1.4σ |








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| Nearest neighbor | Distance | |
|---|---|---|
| ECG Normal | 2.13 | |
| ECG Supraventr. | 2.50 | |
| ECG Fusion | 3.12 |
2-adic › 2-adic:distance_entropy | rank 5/298 | 2.2479 |
H² × ℝ (Thurston) › H² × ℝ (Thurston):hyperbolic_variance | rank 1/298 | 3.4537 |