WETH / idfk
fee 0%- Swap WETH → idfkhook takes 1.00%
- Swap idfk → WETHhook takes 1%
- Add, then remove liquiditycame back whole
pool 0x6f8718d000e6d067a67c2f36f91c70124f48c41c17127ed9ae7fe45cad627450
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
4 pools use this hook, the first one 91 d ago.
The address enables before swap returns delta, after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 1% on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
No owner() but it has setCreator, setLaunchpad.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 90 days.
Measured at block 93,240,081. 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 0x6f8718d000e6d067a67c2f36f91c70124f48c41c17127ed9ae7fe45cad627450
pool 0xf0ed7e096c70c9809405a67ab48fd4605430039247feebb650cf9716b01d1337
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.