ETH / HOLDER
fee 0%- Swap ETH → HOLDERhook takes 7.00%
- Swap HOLDER → ETHhook takes 8%
- Add, then remove liquiditycame back whole
pool 0xf3071eb35743eb8be3daca69cf910ddc70c1aed585c499e451f6f405d01b31fc
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
8 pools use this hook, the first one 50 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 9% 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 0x02cF0f7dbb0588943aAA52023e819CcE2415E4AA. Owner-style functions: transferOwnership.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
8 pools over 49 days.
Measured at block 93,114,431. 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 0xf3071eb35743eb8be3daca69cf910ddc70c1aed585c499e451f6f405d01b31fc
pool 0x8e8eda80a8658124abbe32c112434de3fa7274f3e00101b086049280fae1c967
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.