ETH / DOGE
fee 0%- Swap ETH → DOGEhook takes 1.00%
- Swap DOGE → ETHno liquidity above the price
- Add, then remove liquiditycame back whole
pool 0xc58bef3c7150638cab6d69f35f307a192557eedf4a7f33abdc6c1454edaa5e60
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 88 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 0x221e0B48097e53462c478566E8bc9a340b0C1100. Owner-style functions: setOwner, withdrawTreasury, setFactory, setFeeTiers, setTreasury.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 87 days.
Measured at block 93,240,419. 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 0xc58bef3c7150638cab6d69f35f307a192557eedf4a7f33abdc6c1454edaa5e60
pool 0x823701bb7e57404a561c5e415bad1954fb1873b0c5714a764b6529ae840c06e4
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.