ETH / PPR2
fee 1%- Swap ETH → PPR2hook takes 1%
- Swap PPR2 → ETHhook takes 1%
- Add, then remove liquiditycame back whole
pool 0x9e04c12132533b053d751a9790aa1489383bd9b1c307ce9558e60086caa54bd0
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 110 d ago.
The address enables 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 1%, written in the pool key.
No owner() but it has setFactory.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 110 days.
Measured at block 93,241,681. 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 0x9e04c12132533b053d751a9790aa1489383bd9b1c307ce9558e60086caa54bd0
pool 0x0b4225422f0d9b30ebc5f29c52ff6aa6e33928f820542d935b7f3793413cfeac
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.