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Raliz

Raliz allows sponsors to launch raffles.

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Built at Hacking Paris | Powered by Chiliz

Created on 13th July 2025

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R

Raliz

Raliz allows sponsors to launch raffles.

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The problem Raliz solves

Raliz gives real utility to fan tokens by:

  • Turning them into access keys for exclusive raffles with real-world rewards

  • Providing secure, on-chain transparency for participation and winner selection

  • Creating team-based competition to boost engagement

  • Offering seasonal rewards to fans who support the most active teams

Challenges we ran into

We faced two main challenges:

  • Fan token eligibility: Verifying that users held at least 50 fan tokens from the correct team required dynamic on-chain balance checks.

    • Solution: We used balanceOf from ERC-20 contracts via ethers.js and displayed clear messages for ineligible users.

  • Securing CHZ funds: Preventing organizers from accessing collected funds was critical.

    • Solution: All CHZ is stored in a smart contract pool controlled only by the super admin, ensuring transparency and safety.

Tracks Applied (1)

Fan Token Utility

Fan tokens often lack practical use. Raliz gives them purpose: Eligibility condition to participate in raffles Alignme...Read More

Technologies used

Solidity

Next.js

TypeScript

Tailwind CSS

React.js

Discussion

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