USDG / TRWD
fee 3%- Swap USDG → TRWDnothing taken
- Swap TRWD → USDGtoo little liquidity to measure
- Add, then remove liquiditydeposit refused: OnlyLaunchpad
pool 0x7cca42335754ee50092a73035ba73ea9e03c3555500cfaf0653e9e1ffbb1fabe
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 23 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.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee, but a high one: 3%.
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.
3 pools over 23 days.
Measured at block 93,419,856. 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 0x7cca42335754ee50092a73035ba73ea9e03c3555500cfaf0653e9e1ffbb1fabe
pool 0x2204f1c7e733abb7117572c35ff0aaf74693b782ab8319645d152da42f5d6e2d
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.