Robinhood Chain · Uniswap v4
The fee is hottest in the first block.
Every token is quenched hot: the swap fee starts at its highest the second the pool opens, cools by the second, and sets a day later. Whoever is first pays the most. Whoever waits pays the floor. All of it goes to one address, and the liquidity never comes back out.
A blade, quenched when you opened this page
white heat
Sped up 600× so you can watch it. Sets in 24h 00m 00s of blade time.
One transaction
The supply is minted, the pool is opened against native ETH, and the pool's share is sunk into the trough. Opening the pool starts its clock. Nothing is charged at the door — quench is not even payable.
It cools by the second
The swap fee is at its hottest the second the pool opens and at its floor a day later, falling in a straight line between — continuously, not on the hour. Whoever is first pays the most for it. Whoever waits pays the floor. It is the same rate buying and selling, and the two numbers are constants in the hook, where anyone can read them.
Nothing can reheat it
The curve is three constants in the hook, the clock is set once by the pool manager, and the address the fee goes to is an immutable. The contract holding the liquidity has no withdraw, no owner and no upgrade path.
Why a fee that cools
A flat fee treats the first block and the thousandth the same, and the first block is where the sniping happens. Here the first block is the dearest moment a pool will ever have. The fee does not stop anyone doing anything — it prices impatience, and every basis point of it goes to the same address whether it was charged hot or cold.
Every trade from this site carries the hottest rate it will pay. The tongs read the pool's actual heat in the block the trade lands in and refuse it, by name, if the pool is hotter than that — so a trader can name a rate and let the order wait for the pool to cool to it, rather than being filled at a number they never saw.