Sealed: 9 Oct 2026, 3:09 PM MT, before any held-out data was scored.
Manifest SHA-256: cdfb47280069b86ad4714aec5cf042e1dcda620f014d87c3605b5c292fcfbd1b
48 MIT-BIH ECG records, 480 held-out slices, scored against per-record skill.
| Result | Value |
|---|---|
| Closeness (d_rel) vs per-record skill, rank correlation ρ | −0.75 |
| Agreement (purity) vs per-record skill, rank correlation ρ | +0.72 |
| Held-out slices | 480 across 48 records |
All pre-registered outcomes are reported. Both trust signals passed. A third test failed: combining two leads was not better than the best single lead. A fourth, expected to show no gain in prediction, showed none. State Shape gives a trust signal, not a forecast. Validated on ECG only so far.
Data: MIT-BIH Arrhythmia Database (PhysioNet).