ETH / CARD
fee 0%- Swap ETH → CARDhook takes 5.00%
- Swap CARD → ETHhook takes 5%
- Add, then remove liquiditycame back whole
pool 0x7ceef42081da9887631c65f11f85a34ed281158b3a467859a90ff783108c0348
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 63 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 5% 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%, written in the pool key.
Owned by 0x07428E75f0ab54dF45DDDDF5981F2B5e6D191333. Owner-style functions: setPoolFee, setFactory, transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 63 days.
Measured at block 93,295,884. 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 0x7ceef42081da9887631c65f11f85a34ed281158b3a467859a90ff783108c0348
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.