ETH / QUARREL
fee 0%- Swap ETH → QUARRELno liquidity at the current price
- Swap QUARREL → ETHno liquidity at the current price
- Add, then remove liquiditycame back whole
pool 0x1c753afff40e0035a0d808bb9fe4edb3d1fae0b509b38699c1cb7cd75f0f1a35
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
290 pools use this hook, the first one 56 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.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
No owner() but it has claimable, claim, setFactory.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
290 pools over 56 days.
Measured at block 92,891,017. 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 0x1c753afff40e0035a0d808bb9fe4edb3d1fae0b509b38699c1cb7cd75f0f1a35
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.