ETH / VIBECHAIN
fee 2%- Swap ETH → VIBECHAINnothing taken
- Swap VIBECHAIN → ETHnothing taken
- Add, then remove liquiditydeposit refused: Unauthorized
pool 0xd244587397aff4fa077e217f6ff0d03059c0df3dca96c3e757c31011884f4c9e
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
40 pools use this hook, the first one 47 d ago.
The address enables before remove liquidity. The hook is allowed to take; the next two checks measure whether it does.
A swap through it pays the pool fee and nothing else.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee, but a high one: 2%.
No owner() but it has withdrawCollectedPublicFees.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
40 pools over 47 days.
Measured at block 92,951,071. 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 0xd244587397aff4fa077e217f6ff0d03059c0df3dca96c3e757c31011884f4c9e
pool 0x2be92076d8994f575b6baf36ce8f4c9472e532216efd73b44360ba576245ba37
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.