ETH / WIE
fee 0%- Swap ETH → WIEnothing taken
- Swap WIE → ETHnothing taken
- Add, then remove liquiditycame back whole
pool 0x56760d0bb3ad0d59fe2912bac60fa2e56dbbf0abdc518d58eacd559cd714f7cf
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
7 pools use this hook, the first one 16 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 1.00% 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 0xbDD7Fdc073cb8BB7D622608e2Ff53956D332dDa8. Owner-style functions: setOwner, sweep, claim, setBuybackExecutor, setRewardsDistributor, setTreasury.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
7 pools over 15 days.
Measured at block 93,174,631. 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 0x56760d0bb3ad0d59fe2912bac60fa2e56dbbf0abdc518d58eacd559cd714f7cf
pool 0x964b5cbcc5b7ca2e60cf40ba24e7a850e30e3478f11896bb5c16af8555717e08
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.