ETH / t1
fee dynamic, now 0%- Swap ETH → t1no liquidity at the current price
- Swap t1 → ETHno liquidity at the current price
- Add, then remove liquiditycame back whole
pool 0xcfd8f065bddd77329dfbcc663a3b64e8f5d990a689dd6e52a92c096d867f6212
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 32 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
No pool with liquidity to swap through yet.
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.
4 pools over 31 days.
Measured at block 93,298,967. 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 0xcfd8f065bddd77329dfbcc663a3b64e8f5d990a689dd6e52a92c096d867f6212
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.