SWOS / OMNI
fee 0.30%- Swap SWOS → OMNItoo little liquidity to measure
- Swap OMNI → SWOShook takes 43%
- Add, then remove liquiditycame back whole
pool 0xd75a1bcc3872e165992d8d5eed074e8f4e3d1b1f2a41229b81ec0140585ad737
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
16 pools use this hook, the first one 44 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 took 42.85% of a swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.30%, written in the pool key.
No owner() but it has claim, claimAll.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
16 pools over 44 days.
Measured at block 92,999,623. 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 0xd75a1bcc3872e165992d8d5eed074e8f4e3d1b1f2a41229b81ec0140585ad737
pool 0x5a1665a13cd46387e0bbd713313298009979bcd20c50ae5d6c01d31c436e10e2
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.