USDG / BRAIN
fee 5%- Swap USDG → BRAINno liquidity at the current price
- Swap BRAIN → USDGno liquidity at the current price
- Add, then remove liquiditylost 0.26%
pool 0xa7a2ed73fa0099d558df66ece588605bf2a7efd744d8c18e7624681b877035aa
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 60 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.
No pool with liquidity to swap through yet.
Taking liquidity straight back out lost 0.26%.
A fixed fee, but a high one: 5%.
No owner() but it has sweep.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
4 pools over 59 days.
Measured at block 93,297,579. 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 0xa7a2ed73fa0099d558df66ece588605bf2a7efd744d8c18e7624681b877035aa
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.