WETH / IX1196
fee dynamic, now 0%- Swap WETH → IX1196hook takes 4.00%
- Swap IX1196 → WETHhook takes 3.97%
- Add, then remove liquiditycame back whole
pool 0xb63a34961f64b21ae8c50321d57894dd318b729c1a8e980c75921c63e49a9b9d
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
9 pools use this hook, the first one 80 d ago.
The address enables before swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It took 10.90% of a swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
No owner and no admin functions found.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
9 pools over 79 days.
Measured at block 93,086,871. A hook with an owner or a dynamic fee can behave differently later; scan again before a large trade.
A v4 hook's permissions are the last fourteen bits of its address. The PoolManager calls only what they switch on.
A small swap each way and a liquidity round trip, run through the PoolManager and this hook inside a call that is never sent. The pool fee is expected; anything else missing is the hook.
pool 0xb63a34961f64b21ae8c50321d57894dd318b729c1a8e980c75921c63e49a9b9d
pool 0x5eb60a81541b496fecd9b07d38ff04aed9d22d5ff8ba68588e65d3f5d7a1b442
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.