ETH / GOOFY
fee 0%- Swap ETH → GOOFYhook takes 3.00%
- Swap GOOFY → ETHhook takes 3%
- Add, then remove liquiditycame back whole
pool 0x0d2547ce7fca36544b296bfc89c509d3bb4ac186f7830202ab41c82f5185efbc
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
3 pools use this hook, the first one 71 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 3% of each swap 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.
Owned by 0xBDAcF84aE9e9a79eC5b8C3305ab916eAA65c3eB0. Owner-style functions: setPoolFee, setFactory, transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools over 71 days.
Measured at block 93,419,694. 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 0x0d2547ce7fca36544b296bfc89c509d3bb4ac186f7830202ab41c82f5185efbc
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.