ETH / KEK
fee dynamic, now 0%- Swap ETH → KEKhook takes 2.00%
- Swap KEK → ETHhook takes 2%
- Add, then remove liquiditycame back whole
pool 0xb45cd346e2a496b044d59d0292edd0c2817d097737a2c77e78a914afcbb4ce34
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 101 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% 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.
3 pools over 100 days.
Measured at block 93,393,296. 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 0xb45cd346e2a496b044d59d0292edd0c2817d097737a2c77e78a914afcbb4ce34
pool 0xeca14510690c534404dc07ea75e548bd271503f2d51bd528eefe84ad2fbae857
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.