V4KS / USDG
fee 1%- Swap V4KS → USDGnothing taken
- Swap USDG → V4KSnothing taken
- Add, then remove liquiditydeposit refused: NotPoolOwner
pool 0x041389ca4caeba17a9581be95186a49ceb0b8ca54762e340e63493790a96438b
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
6 pools use this hook, the first one 100 d ago.
The address enables before remove liquidity. The hook is allowed to take; the next two checks measure whether it does.
A swap through it pays the pool fee and nothing else.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee of 1%, 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.
6 pools over 100 days.
Measured at block 93,210,284. 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 0x041389ca4caeba17a9581be95186a49ceb0b8ca54762e340e63493790a96438b
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.