# Part IV: OnlyDX FAQ

This section presents the most common **questions** encountered when using OnlyDX in a **Q\&A** format, aiming to provide clear answers and practical guidance for users at different levels.

#### Q1: Will OnlyDX store my identity information?

**A:** No. By default, OnlyDX does not collect any identity information—users remain fully anonymous. In specific compliance scenarios where proof of identity is required, you can use **zk-KYC** to provide a zero-knowledge proof that demonstrates compliance without revealing personal data.

#### Q2: If the protocol is upgraded, what happens to my funds in the old contracts?

**A:** The old contracts will stop accepting new deposits and remain withdrawal-only. We will offer a front-end “one-click migration” entry and provide migration incentives or fee waivers. We recommend migrating promptly to benefit from the latest yields and security guarantees.

#### Q3: Why is there a waiting period for withdrawals?

**A:** Due to the **Optimistic Rollup** challenge period, standard withdrawals take some time to ensure security. You can opt for a **Fast Withdrawal** service to receive funds immediately from liquidity providers, in exchange for a small fee.

#### Q4: Can others track or front-run my trades?

**A:** No. OnlyDX uses a **private mempool** and a **commit–reveal** scheme, so transactions are not visible before they are finalized on-chain, mitigating front-running and sandwich attacks. In addition, the **stealth address** mechanism prevents on-chain observers from inferring payer–payee relationships.

#### Q5: Are the fees high?

**A:** No. In most cases, OnlyDX fees are comparable to, or lower than, aggregator platforms. Optional privacy-enhancing features (such as dedicated routing or accelerated proofs) may incur small add-on fees, but they are entirely optional.

#### Q6: How can I earn rewards?

**A:** Users can earn rewards in several ways:

* Trading and market making can earn **OLYDX** points or token rewards;
* Staking **OLYDX** provides fee-sharing and governance rights;
* Referring new users and contributing to community tasks (tutorials, feedback, translation, etc.) are incentivized;
* Running nodes or serving as observers/challengers—and submitting valid fraud proofs—can yield additional rewards.

#### Q7: Does OnlyDX support my usual wallets and chains?

**A:** Yes. OnlyDX is compatible with major EVM chains (Ethereum, BSC, Polygon, etc.). Wallets can integrate directly via the SDK, and we will continue expanding support across more cross-chain ecosystems.

#### Q8: If I delay migration, is there any risk?

**A:** Old contracts will no longer receive new incentives and may carry security risks. While withdrawals remain available, we recommend migrating as soon as possible to avoid asset risk and missed rewards.

#### Q9: How can users profit on OnlyDX?

**A:** There are multiple avenues:

1. **Trading arbitrage:** Use aggregated routing to find better prices and capture spreads;
2. **Liquidity provision:** Provide liquidity to vaults or pairs to earn fees and incentives;
3. **Staking OLYDX:** Receive platform fee-sharing and issuance rewards;
4. **MEV value sharing:** Protocol mechanisms share value that would otherwise accrue to miners/orderers back to users;
5. **Referral & task rewards:** Earn points and tokens by inviting users and contributing to the ecosystem.
