ETH / TREX
fee 1.25%- Swap ETH → TREXnothing taken
- Swap TREX → ETHnothing taken
- Add, then remove liquiditycame back whole
pool 0xb50b7775159e7406db42127b7d226277f9d11ae36523996e390510c004567045
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
22 pools use this hook, the first one 60 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
A swap through it pays the pool fee and nothing else.
Liquidity added and removed in the same block came back whole.
A fixed fee, but a high one: 1.25%.
No owner and no admin functions found.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
22 pools over 59 days.
Measured at block 92,972,200. 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 0xb50b7775159e7406db42127b7d226277f9d11ae36523996e390510c004567045
pool 0x4f92fd56c5a75e02cb7a1b6a523ad37f78122b623fe48c91b95014ed72facc36
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.