GE / TOP
fee 0.25%- Swap GE → TOPhook takes 2.73%
- Swap TOP → GEhook takes 2.75%
- Add, then remove liquiditycame back whole
pool 0x33882fbc50b7b4fbb5e08fe6c3bf200ee9465b269db28e75a78fc2fa14bb472b
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 41 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 2.75% of each swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.25%, written in the pool key.
Owned by 0x4D8E431f3d93B57E3CDd3FA9cc4e6D248678933B. Owner-style functions: setDividendFeeHelper, setDeployer, transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools over 41 days.
Measured at block 93,393,602. 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 0x33882fbc50b7b4fbb5e08fe6c3bf200ee9465b269db28e75a78fc2fa14bb472b
pool 0x3615f5b5b722c50e4172827946136e4274d3ec5097e72e97fcfea064da4927d7
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.