MXAD2 / WETH
fee 0%- Swap MXAD2 → WETHhook takes 3%
- Swap WETH → MXAD2hook takes 3.00%
- Add, then remove liquiditycame back whole
pool 0x11d97e2842cc6c64da040130df585113ce71cbd7044085fc5f0e966e47155e3e
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 72 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 3% of each swap 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.
No owner() but it has claim.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools over 71 days.
Measured at block 93,362,301. 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 0x11d97e2842cc6c64da040130df585113ce71cbd7044085fc5f0e966e47155e3e
pool 0x49f3c8829e0273ca68d685b2ffafae61e79477c5014a34bcabbca0bb16ec84f1
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.