Record chip kind alongside process and device count on every run

Correct why topology changes a result: the data stream is invariant, the arithmetic is not

Mark the data-process count on every run: a seed alone does not identify one

Add full-resolution payloads for the study browser's opt-in download

Add a study card per folder: setup, reproduce command, and what it showed

Add per-study snapshots: curves-only overview, plus diagnostics where spikes are the subject

Add rig training logs: 177 runs across six studies, full resolution