TSTN / MSTR
fee 0%- Swap TSTN → MSTRno liquidity below the price
- Swap MSTR → TSTNhook takes 1.00%
- Add, then remove liquiditycame back whole
pool 0x96c706103743d3f6169bcc37427747073cb431c2eeb774445848fcc5451b5f1a
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
10 pools use this hook, the first one 23 d ago.
The address enables before remove liquidity, before swap returns delta, after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 1% 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 claim, claimIn, setSeeder.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
10 pools over 23 days.
Measured at block 93,115,273. 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 0x96c706103743d3f6169bcc37427747073cb431c2eeb774445848fcc5451b5f1a
pool 0xad1bf97a84bcad8aa098ab50c84d402ac4063694064e1464c8d3d9e9425293b1
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.