Win-Win

Win a 1/6 of what the team wins in the hackathon! This project offers a unique opportunity to participate in the prize distribution. By scanning your NFC tag, you automatically enter a raffle for a chance to win a portion of the prize money, should our team be successful. Unlike traditional prize splits, the prize will be divided among six participants instead of five. This means that each of the six individuals will have an equal opportunity to win 1/6 of the total prize pool, ensuring that everyone involved has a chance to benefit from the team's success. Don’t miss out on this exciting opportunity to be part of the action and potentially walk away with a share of the winnings!

NFC-Enabled NFTs: Each participant in the hackathon is assigned a unique NFC tag. The NFC tag is programmed with the participant’s identity and their eligibility for the raffle.

NFC Scanning: During the hackathon, participants scan their NFC tags using an NFC-enabled device (such as a smartphone or tablet). This scan automatically enters them into the raffle for a chance to win a portion of the prize money.

Team Prize Winning: If the team wins a prize, the prize money will be divided among six participants instead of the usual five. Each participant who has scanned their NFC tag is eligible to win 1/6 of the total prize pool.

Raffle System: After the prize is won, the system randomly selects a winner from the six participants who have scanned their NFC tags, ensuring that each person has an equal chance of winning a portion of the prize.

Blockchain Integration: The process is backed by blockchain technology to ensure the transparency and security of the prize distribution. It also verifies the authenticity of each NFC tag and participant’s entry.

Tech Stack and Contributions:

• Arx Facilitates seamless user onboarding via NFC scans. Simplifies interactions by integrating account abstraction, enabling participants to join raffles without managing private keys or navigating blockchain complexities. Provides a user-friendly gateway for event participation.

• Privy Integrates social and in-app wallets for a frictionless experience. Expands wallet compatibility, supporting smart wallets and other options for scalability and adaptability. Ensures secure and private user authentication and wallet management.

• Polygon A scalable and cost-effective blockchain for handling on-chain transactions. Ensures high-speed operations for registering participants, processing raffle results, and distributing prizes. Leverages its low transaction fees to make the system accessible for large-scale events like hackathons.

• Blockscout Tracks user activity on the blockchain, such as raffle entries and interactions. Verifies participant eligibility by analyzing on-chain actions and proof of engagement. Acts as an explorer to ensure transparency and auditable participation data.

• Chainlink VRF Ensures fair and random winner selection through its Verifiable Random Function. Introduces provable randomness to the raffle system, preventing bias or tampering. Builds trust in the system by offering cryptographically secured random outputs. NFC Technology

NFC-enabled tags serve as the entry point for users to participate in the raffle. Simplifies onboarding and participation with a quick scan, linking user identity and eligibility to the blockchain. Enhances user engagement by eliminating manual steps and leveraging existing NFC-enabled devices.

• Smart Contracts Built on the Polygon blockchain to automate raffle processes, including registration, winner selection, and prize distribution. Handles the secure division of prize pools among participants based on the defined rules. Ensures the integrity of the entire raffle system with tamper-proof execution. Oracle Integration (Chainlink)

Fetches random data for raffle operations and updates event details seamlessly. Provides external data feeds, ensuring reliable communication between on-chain and off-chain systems. Enables cross-chain functionality to expand the use case for broader ecosystems. How They Work Together User Interaction: NFC technology via Arx ensures easy onboarding. Blockchain Operations: Polygon handles transactions, with Blockscout providing activity tracking and verification. Fairness & Randomness: Chainlink VRF ensures that winner selection is unbiased and tamper-proof. Wallet Management: Privy enables secure and user-friendly wallet integration for raffle participation and prize claims. This comprehensive tech stack creates a seamless, secure, and efficient raffle system tailored for hackathons and other events, ensuring a scalable and enjoyable experience for users and organizers alike.