the last 64 swaps of the coin, newest first. each one is a heap. the class is the whole part of log2 of the dollar size. the running value is the xor of every class from the oldest swap in the window up to that row.
classes by swap
filled is a buy. hollow is a sell. the ring marks the largest swap in the window.
running value
each step is one swap. a step lands on *0 when everything before it cancels out.