ETH / QUANT
fee 0%- Swap ETH → QUANThook takes 5.00%
- Swap QUANT → ETHno liquidity above the price
- Add, then remove liquiditycame back whole
pool 0x187c20d1bee13638fe5a3ecc4925772ec9f8e4e3875e206868db1f9d33029893
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
10 pools use this hook, the first one 65 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.
It takes 5% of each swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
Owned by 0xB75e371c4c8c2114b5075Fcb39CF5305Fbc18305. Owner-style functions: setPoolFee, setFactory, transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
10 pools over 65 days.
Measured at block 93,060,553. 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 0x187c20d1bee13638fe5a3ecc4925772ec9f8e4e3875e206868db1f9d33029893
pool 0x6e77ab262fc1cbb78dc66cb9789c56309c28d1e4837950a4b06cc8eb9d144be2
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.