ETH / PIPECAT
fee 0%- Swap ETH → PIPECATnothing taken
- Swap PIPECAT → ETHrefused: reverted without a reason
- Add, then remove liquiditycame back whole
pool 0x8fd94116e6ac1b082e20149e299f9ad2d55f66f55cff86b1b62d2337976f59b3
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
21 pools use this hook, the first one 103 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
One direction works and the other is refused (reverted without a reason). You may be able to buy and not sell.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
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.
21 pools over 103 days.
Measured at block 92,973,235. 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 0x8fd94116e6ac1b082e20149e299f9ad2d55f66f55cff86b1b62d2337976f59b3
pool 0xf65355ecef4ec5f8fab058858635660b67ec620ed6a84b0056cbf4e59434c955
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.