ETH / ELON
fee dynamic, now 0%- Swap ETH → ELONhook takes 0.99%
- Swap ELON → ETHno liquidity above the price
- Add, then remove liquiditycame back whole
pool 0xa55c86388b775bf924a3d8b506f3cde149a452d5ebd11659654b60e8aef4fdf6
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
35 pools use this hook, the first one 81 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 0.99% on top of the pool fee.
Liquidity added and removed in the same block came back whole.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
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.
35 pools over 81 days.
Measured at block 92,922,057. 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 0xa55c86388b775bf924a3d8b506f3cde149a452d5ebd11659654b60e8aef4fdf6
pool 0x110bf7fe2ced16475ca43ab090368c7d93eead5b2beb95d365bcffa472590686
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.