ETH / PRSV
fee dynamic, now 0%- Swap ETH → PRSVnothing taken
- Swap PRSV → ETHnothing taken
- Add, then remove liquiditycame back whole
pool 0x40238bef672472bf626b4e989cde96987188cf7ca112f0303330b78a021a412b
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
19 pools use this hook, the first one 68 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.
A swap through it pays the pool fee and nothing else.
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.
Owned by 0x8AbD237E20E5A5DeF01990fb0303a4E0409fAD8A. Owner-style functions: setPoolFee, setFactory, transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
19 pools over 68 days.
Measured at block 92,975,638. 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 0x40238bef672472bf626b4e989cde96987188cf7ca112f0303330b78a021a412b
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.