Likely fee sharing hook on Robinhood Chain

Uniswap v4 Hook Contract 0xa59fcfd3a9182f73be5a5915ce297988e24f8044 on Robinhood Chain · Fee sharing

Volume (24h)
$2.78
Value locked (TVL)
<$0.01
All-time volume
$2.78
Pools using this hook
7
Swaps (24h)
12 (2 traders)
Total swaps
12

What it does

A small, immutable hook that takes a fixed but unverified fee from swaps after they execute (likely in WETH), while LPs add and withdraw liquidity freely.

How it works step by step

  • Runs after every swap in pools that use it.
  • Can take a cut of the swap's output (or unspecified side) using a return delta and withdraw it from the PoolManager.
  • References a WETH address, likely to collect the fee in WETH or the native-wrapped token.
  • Has no owner, no storage and no admin functions; behaviour is fixed in code.
  • Does not touch liquidity adds or withdrawals.
Swap behaviour
After each swap the hook can deduct an amount from the swap result and take it out of the PoolManager, so traders may receive slightly less than a plain pool would give. The exact fee size and recipient are hard-coded in unverified bytecode and could not be confirmed.
Liquidity behaviour
No liquidity callbacks; LPs can add and withdraw freely.
Fee behaviour
Likely charges a fixed swap fee taken after the swap and sent to a hard-coded recipient, possibly only when WETH is involved; the exact percentage is unknown from bytecode. The pool's normal LP fee still applies.
Owner & admin controls
No admin controls found; the contract has no storage and no owner functions.

Enabled Uniswap v4 callbacks

afterSwap, afterSwapReturnDelta

afterSwap: runs logic after each swap; afterSwapReturnDelta: lets the hook deduct tokens from the swap outcome and take them as a fee.

Security & trust assessment

Risk level: medium, estimated (decoded bytecode, medium confidence).

Who controls it: No privileged keys were found; the contract is a direct, non-upgradeable deployment with no storage.

Risk to user funds: The hook can take part of each swap's output as a fee of unknown size set in code; LP principal cannot be locked or drained by this hook.

Security findings

  • [low] Unverified swap fee via return delta: The hook can deduct tokens from swaps and withdraw them, but the fee size and recipient cannot be verified without source code.
  • [info] Immutable, no admin: No storage or owner functions exist, so the behaviour cannot be changed after deployment.
  • [info] LP withdrawals unrestricted: Remove-liquidity callbacks are disabled, so the hook can never block or charge LP withdrawals.

Contract details

Verified source
No
Bytecode size
1,189 bytes
Upgradeable proxy
No
Detected patterns
moves-currency, return-delta

Pools using Likely fee sharing hook