ETH / BOB
fee 0%- Swap ETH → BOBhook takes 3.60%
- Swap BOB → ETHrefused: PastTheMarks
- Add, then remove liquiditydeposit refused: OnlyAHull
pool 0xb0df68691c449893f39ae79ab6e3fb2eb76e8a026b6b4a15c4de19ef7eb4750a
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 15 d ago.
The address enables before remove liquidity, before swap returns delta, after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
One direction works and the other is refused (PastTheMarks). You may be able to buy and not sell.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee of 0%, written in the pool key.
No owner() but it has skim, skimmed.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools over 14 days.
Measured at block 93,459,331. 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 0xb0df68691c449893f39ae79ab6e3fb2eb76e8a026b6b4a15c4de19ef7eb4750a
pool 0xf25328c2005da9a67d9c7b4891912b41e8e1efc0cbe4dc31b6fde82f9b0f958e
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.