On 2026-09-10, our multi-venue tape recorded a BTC cascade: $75.3M in forced closes over 4 minutes (n=5,773 raw tape events in our own capture, not the whole market).
The liquidation map snapshot published 1 minutes before the start showed 28 levels; 9 were reached inside the cascade's traded range (n=28 levels, Wilson 95% lower bound 18%). Misses are shown at equal weight in the full autopsy.
The measured record as published that day: walk-forward precision 71.6% [Wilson 95% lower bound 47.9%], n=17 day-clusters.
Full re-verified anatomy (minute-by-minute timeline, before-map, venue breakdown): https://hunterkiller.io/autopsy/2026-09-10T1244-BTC
Descriptive record of a past event - not a forecast and not a trade signal.