USDG / TESTRH
fee 0%- Swap USDG → TESTRHhook takes 1.00%
- Swap TESTRH → USDGtoo little liquidity to measure
- Add, then remove liquiditylost 10%
pool 0xb989e281cfdedad591a89bd09d103d37c31d4ddcb2a71c81738df86d9c3fd79c
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 22 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 3.00% of each swap on top of the pool fee.
Taking liquidity straight back out lost 10%.
A fixed fee of 0%, written in the pool key.
No owner() but it has claimable, claimFees.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 22 days.
Measured at block 93,297,650. 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 0xb989e281cfdedad591a89bd09d103d37c31d4ddcb2a71c81738df86d9c3fd79c
pool 0x9a8f30a0d0f859bc99d87f3abb1bece6fd7e140d45db2138022ee524b3bd95de
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.