0x4da1…2888

Arbitrum

Runs code on every swap. Can take tokens from swaps. Gates who can add liquidity. Runs at pool creation.

0x4da18469eb919adf4d1b63e3c2048459de902888 First pool 3 Aug 2026View on explorer

CBe carefulNot in Uniswap’s hook registry · Source code not published · Can take tokens out of swaps

Pools

Dynamic-fee pools

Last new pool

3mo

Code size

18,086 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Can take tokens from swaps

It can take or add tokens during a swap. Fees, burns and custom curves work this way, and so do scams.

Gates who can add liquidity

It checks every deposit before it goes in.

Runs at pool creation

It runs when a pool is created, often to lock in that pool’s settings.

Automated checks, not an audit

✓Not upgradeableNo proxy pattern found: the code is fixed.

✓No owner foundNo owner() function: nobody has an admin switch (as far as the standard check goes).

!Not in Uniswap’s hook registryUnregistered hooks get less scrutiny. Most scam hooks are unregistered.

!Source code not publishedNobody can read what this hook actually does. Treat it as a black box.

iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.

?No audit linkedAutomated checks only.

4 total

PairCreatedFeePool ID

ETH / fkUSDC 3mo 0.00% 0xefa4…903a Tx ↗

USDC / fkETH 3mo 0.00% 0x445f…a881 Tx ↗

ETH / fkETH 3mo 0.00% 0x67af…654c Tx ↗

USDC / fkUSDC 3mo 0.00% 0xe8c4…092d Tx ↗