HPE / ORBLY
fee dynamic, now 0%- Swap HPE → ORBLYhook takes 1.00%
- Swap ORBLY → HPEhook takes 1.00%
- Add, then remove liquiditycame back whole
pool 0xd89f9f570d65f049cd97f6fe800c9473a575a530e59a1414dfc161b22bbfc25f
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
42 pools use this hook, the first one 45 d ago.
The address enables after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 1.00% 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.
Owned by 0x50047200916E7bc6234c065F931a2F03eE534503. Owner-style functions: setLaunchpad.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
42 pools over 45 days.
Measured at block 92,921,932. 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 0xd89f9f570d65f049cd97f6fe800c9473a575a530e59a1414dfc161b22bbfc25f
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.