One question runs through the Digital Foot Lab: is it defendable? Proven, not promised — deterministic gates, hash-chained receipts, and your photos never leave the box.
Endpoints and pass/fail thresholds are written and hash-frozen before any results, so nothing is cherry-picked.
Every number is rule-based and recomputable by an outsider. A model never grades a model.
Patient photos and observations stay on the owner’s box. Only the aggregate receipts and the tamper-evident ledger are published.