01
One stick, one public count
The stick is a counter in the contract. It shows how many notches are cut and how many the round asks for, and N is public from the moment the round opens. There is no private view, no draw and no clock: a number, a threshold, and a block.
02
A buy cuts, a sell does not
A qualified buy of $NOTCH, above a minimum set at deploy, cuts one notch. One per address per block, however many swaps you send. A sell pays the toll like any swap and cuts nothing at all.
03
Every swap fills the pot
The hook takes a fixed share of every swap in the pool, buy or sell, in the quote asset. A part of it burns; the rest drops into the pot. Nothing else feeds it, and nothing takes from it before the Nth.
04
The Nth notch opens it
The buy that brings the count to N takes the pot, minus the part that rolls. If several buys land in the block that crosses N, they share it by amount, so the sequencer never picks a winner. Then the stick is blank and the next N is bigger.