Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
121 pools use this hook, the first one 77 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
Every swap through it was refused: Private pool: only whitelisted addresses can swap here.. Only an approved router may get through.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.03%, written in the pool key.
Owned by 0x4e59b44847b379578588920cA78FbF26c0B4956C. Owner-style functions: transferOwnership, setAllowed, setAllowedBatch.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
121 pools over 76 days.
Measured at block 92,893,412. 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 0x216ed4550c604f153dacd2bf1c559d7c53f395877d748680ac4b8574aa3b9ec7
pool 0x5a982408f1a16eaba2cc9e6c1edaa0b5b1f70e64eceea496aef34833241efa61
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.