ETH / ATLAS
fee dynamic, now 0%- Swap ETH → ATLAShook takes 3.05%
- Swap ATLAS → ETHhook takes 2.05%
- Add, then remove liquiditycame back whole
pool 0x79b1bff5198a7785c6a9c51f99d8681893a05966763de10e85cdd8476a99af12
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
9 pools use this hook, the first one 19 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 5.95% of each swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
No owner and no admin functions found.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
9 pools over 19 days.
Measured at block 93,088,199. 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 0x79b1bff5198a7785c6a9c51f99d8681893a05966763de10e85cdd8476a99af12
pool 0x9714b1dc68df62095cb5f5f977f2992b6815dcaba7c410a237ea7733e1facc67
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.