NVDA / GPU
fee 5%- Swap NVDA → GPUnothing taken
- Swap GPU → NVDAnothing taken
- Add, then remove liquiditydeposit refused: OnlyLocker
pool 0xb55508abdfa1c981c1300484a35e4695bccf00e60198b4b8472c69b487239b9b
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
4 pools use this hook, the first one 85 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, but a high one: 5%.
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.
4 pools over 85 days.
Measured at block 93,238,443. 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 0xb55508abdfa1c981c1300484a35e4695bccf00e60198b4b8472c69b487239b9b
pool 0x25fb72ee93fa4bbef39b0442039e657940ddcd2a401c9e38f744f8172caa284c
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.