FAQ

General

What is LightChallenge?

LightChallenge is an on-chain challenge protocol where you stake cryptocurrency on personal goals and earn rewards when you prove you achieved them. Evidence is verified by the Lightchain AI network — no trust required.

What chain does it run on?

LightChallenge runs on the Lightchain network (chain ID 504). Currently deployed on testnet with LCAI as the native token.

Is it free to use?

Creating and participating in challenges requires staking LCAI tokens. There is a small protocol fee (configurable by the admin). On testnet, you can get free LCAI from the faucet.

What wallets are supported?

MetaMask, WalletConnect (any compatible mobile wallet), Coinbase Wallet, Rainbow, Trust Wallet, and Phantom. Safari users should use WalletConnect.

Challenges

What types of challenges can I create?

• Fitness — Step counts, walking/running distance, cycling (via Apple Health, Strava, Garmin, Fitbit)
• Gaming — Match wins, ranked performance (via Dota 2, CS2, League of Legends)
• Custom — Any verifiable goal with manual evidence submission

How is my evidence verified?

Your evidence goes through a multi-stage pipeline:

1. An off-chain evaluator checks the raw data against your challenge rules
2. The result is submitted to the Lightchain AIVM network
3. Multiple AI validators independently verify the claim
4. When they reach consensus, the smart contract is updated

What happens if I fail my challenge?

If you don’t submit proof before the deadline, or if the AI verification determines you didn’t meet the goal, the challenge is finalized as failed. Your stake goes to the protocol treasury.

Can I cancel a challenge?

Only the contract admin can cancel challenges. Canceled challenges allow all participants to claim refunds.

Evidence

How do I submit Apple Health data?

1. Open the webapp and navigate to your challenge’s proof page
2. Select “Apple Health” and click “Sign & Generate QR”
3. Sign the authentication message with your wallet
4. Scan the QR code with your iPhone
5. The iOS app opens, reads your HealthKit data, and submits it

Do I need the iOS app?

Only for Apple Health evidence. Gaming evidence (Dota 2, CS2, LoL) is collected automatically through linked accounts. Strava and Garmin data is also collected via OAuth.

Is my health data private?

Your raw health data is sent only to the LightChallenge backend for evaluation. Only the verification result (pass/fail) is stored on-chain. The raw data is not published to the blockchain.

Technical

How do I add Lightchain to my wallet?

Where are the smart contracts?

I’m getting “Wrong network” in the webapp

Click the “Wrong network” button and approve the chain switch in your wallet. If the Lightchain testnet isn’t added yet, your wallet will prompt you to add it.