SPRING / USDG
fee 0.05%- Swap SPRING → USDGno liquidity at the current price
- Swap USDG → SPRINGno liquidity at the current price
- Add, then remove liquiditycame back whole
pool 0x6b7cecfe87984a79407e3845253cdc170b3a828651fb67aae30ee318ccd29de0
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 17 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
No pool with liquidity to swap through yet.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.05%, written in the pool key.
No owner() but it has withdrawCommission, claim, claimBoth.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
6 pools over 17 days.
Measured at block 93,173,793. 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 0x6b7cecfe87984a79407e3845253cdc170b3a828651fb67aae30ee318ccd29de0
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.