UniHooks

SinjohHook

Robinhood

Runs code on every swap. Can take tokens from swaps. Can block LP withdrawals. Gates who can add liquidity. Runs at pool creation. Handles donations to LPs.

0xf582a29755e2d0a5b42c1da239d47f6b1c41aaec First pool 20 Oct 2026View on explorer
CBe carefulNot in Uniswap’s hook registry · Can take tokens out of swaps
Pools
7
Dynamic-fee pools
0
Last new pool
16d
Code size
47,585 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.

Can block LP withdrawals

It runs before liquidity is removed, so it can delay or refuse LP exits.

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.

Handles donations to LPs

It runs when someone donates tokens to the pool’s LPs.

Safety report

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 publishedThe code on the block explorer matches what's deployed (contract: SinjohHook).
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.

Pools using this hook

7 total
PairCreatedFeePool ID
WETH / SJM6 16d 0.00% 0x2d1b…06b1 Tx ↗
WETH / SJM7 16d 0.00% 0x1743…f492 Tx ↗
SJM5 / SJM1 16d 0.00% 0x3df1…2996 Tx ↗
WETH / SJM4 16d 0.00% 0xbcdc…6733 Tx ↗
SJM3 / NVDA 16d 0.00% 0xe08d…4e02 Tx ↗
USDG / SJM2 16d 0.00% 0xc775…83ea Tx ↗
WETH / SJM1 16d 0.00% 0x8932…9cf9 Tx ↗