ETH / VLAD
fee 0%- Swap ETH → VLADhook takes 1.00%
- Swap VLAD → ETHhook takes 1%
- Add, then remove liquiditycame back whole
pool 0x204f4ef399fa6b0f8f1bd3303de3024526e7dd0e67b4abff78b6344945570c18
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
32 pools use this hook, the first one 98 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 1% 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 0xbeb76A70c82B09E30B2008eAFa7F987987EC9e0b. Owner-style functions: transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
32 pools over 98 days.
Measured at block 92,947,891. 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 0x204f4ef399fa6b0f8f1bd3303de3024526e7dd0e67b4abff78b6344945570c18
pool 0xf9559fc80edbbe2a7f069509339756ed14feaa682db9c6e8b12b841c65019ca1
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.