ETH / HOGE
fee 0%- Swap ETH → HOGEhook takes 1.00%
- Swap HOGE → ETHno liquidity above the price
- Add, then remove liquiditycame back whole
pool 0xd72a987fc02d8ea0d374bdbea0f05e256c128fcd02fe22a846a0af19c8c5356a
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
5 pools use this hook, the first one 86 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.
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.
5 pools over 85 days.
Measured at block 93,206,648. 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 0xd72a987fc02d8ea0d374bdbea0f05e256c128fcd02fe22a846a0af19c8c5356a
pool 0xf57c91c6a78b8b82cf6037e8ef89f3fc8fdab894c1395cea894ee7191bc30daf
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.