WETH / FMQA
fee 0.30%- Swap WETH → FMQAnothing taken
- Swap FMQA → WETHnothing taken
- Add, then remove liquiditycame back whole
pool 0x2af15abe11e65b63afe8127f7676d4008ed4ca5289731f798668e2dd13b26217
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
3 pools use this hook, the first one 27 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
A swap through it pays the pool fee and nothing else.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.30%, 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.
3 pools over 26 days.
Measured at block 93,419,519. 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 0x2af15abe11e65b63afe8127f7676d4008ed4ca5289731f798668e2dd13b26217
pool 0x5da7f67a944bc0ddf04aa0b974cfc4986d3c938aec8cf0d27527409348a19dec
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.