ETH / TDP
fee 0%- Swap ETH → TDPhook takes 2.00%
- Swap TDP → ETHno liquidity above the price
- Add, then remove liquiditycame back whole
pool 0xbd8c5ef253a39713cf9feeb8d4c26f500cc26874e5b546dbd16abedd9449f6f1
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
84 pools use this hook, the first one 88 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 2.00% of each swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
No owner() but it has collect.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
84 pools over 88 days.
Measured at block 92,890,025. 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 0xbd8c5ef253a39713cf9feeb8d4c26f500cc26874e5b546dbd16abedd9449f6f1
pool 0xd1f58c7568790c8dbfab91f22e7f399f9cbc510df8422590132263c4d9eb1b87
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.