ETH / USDG
fee dynamic, now 0%- Swap ETH → USDGnothing taken
- Swap USDG → ETHnothing taken
- Add, then remove liquiditycame back whole
pool 0xed517705e7047bcb81feb3769bc6c7d1875b26867300fdfcb1a53a34c2894b5a
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 74 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.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
Owned by 0x789150Ad7E5F3b56a6Ce5c71e531a30CCdFAd226. Owner-style functions: transferOwnership, setDefaultFee.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools over 74 days.
Measured at block 93,326,930. 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 0xed517705e7047bcb81feb3769bc6c7d1875b26867300fdfcb1a53a34c2894b5a
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.