JOJO Exchange is a DeFi-Native Perpetual Contract that is: Liquid, Safer, and Faster. Security is everything.
Scope
Contest Results
On what chains are the smart contracts going to be deployed?
Arbitrum
Which ERC20 tokens do you expect will interact with the smart contracts?
USDC, WETH, WBTC, ARB
Which ERC721 tokens do you expect will interact with the smart contracts?
none
Which ERC777 tokens do you expect will interact with the smart contracts?
none
Are there any FEE-ON-TRANSFER tokens interacting with the smart contracts?
no
Are there any REBASING tokens interacting with the smart contracts?
no
Are the admins of the protocols your contracts integrate with (if any) TRUSTED or RESTRICTED?
TRUSTED
Is the admin/owner of the protocol/contracts TRUSTED or RESTRICTED?
TRUSTED
Are there any additional protocol roles? If yes, please explain in detail:
no
Is the code/contract expected to comply with any EIPs? Are there specific assumptions around adhering to those EIPs that Watsons should be aware of?
expected to comply with any EIPs
Please list any known issues/acceptable risks that should not result in a valid finding.
Please provide links to previous audits (if any).
Are there any off-chain mechanisms or off-chain procedures for the protocol (keeper bots, input validation expectations, etc)?
JOJO is a decentralized perpetual contract exchange based on an off-chain matching system. There are more details in here: https://jojo-docs.netlify.app/
JOJO is especially interested in losses/malfunctioning related to MEV.
In case of external protocol integrations, are the risks of external contracts pausing or executing an emergency withdrawal acceptable? If not, Watsons will submit issues related to these situations that can harm your protocol's functionality.
We use Chainlink and Uniswap as oracle price source. If the oracle is pausing, we still have emergency oracle so that do not worry about it.
Chainlink Oracle Failed.
Total Rewards
Contest Pool
Lead Senior Watson
Judging Pool
Lead Judge
52,000 USDC
21,000 USDC
2,600 USDC
2,600 USDC
Status
Scope
Start Time
End Time
Finished
2,718 nSLOC
Apr 24, 2023, 3:00 PM
May 10, 2023, 3:00 PM