TicketDot

🎯 Inspiration

Ticket fraud and scalping cost the live events industry billions each year. Fans often buy fake tickets or pay inflated resale prices, while organizers struggle with bots and middlemen. I wanted to create a trustless, transparent ticketing system using Polkadot’s blockchain technology — one that ensures every ticket is authentic, user-owned, and verifiable on-chain.

🎫 What It Does

TicketDot is a decentralized ticketing platform built on Polkadot’s Astar Network that turns every event ticket into an NFT.

Event Organizers can create and manage events directly on-chain.
Users can browse, buy, and transfer NFT-based tickets securely.
Each Ticket is an NFT that proves authenticity, ownership, and transfer history — eliminating fraud and scalping.

All transactions are recorded on-chain, and metadata (like event details) is stored on IPFS, ensuring transparency and decentralization.

🧱 How We Built It

Smart Contract: Written in Ink! (Rust), using the PSP34 NFT standard for tokenized tickets.
Blockchain Layer: Deployed on Astar Shibuya Testnet, leveraging Polkadot’s interoperability.
Frontend: Built with React + TypeScript + Vite for a responsive, intuitive UI.
Web3 Integration: Used Polkadot.js API for wallet connection and blockchain transactions.

- Storage: Event metadata stored on IPFS for immutability and decentralization.

🧩 Challenges We Ran Into

Issues with the substrate_contract_node in windows and local deployment for local node.
Handling asynchronous blockchain calls within a React frontend.
Debugging contract deployment errors and wallet integration.
Ensuring the UI remained simple and beginner-friendly despite the blockchain complexity.

🏆 Accomplishments That We’re Proud Of

✅ Fully functional end-to-end DApp deployed on the Astar Shibuya testnet.
✅ Seamless wallet integration via Polkadot.js.
✅ NFT-based ticketing system that prevents fraud and proves authenticity.
✅ Clean, modular, and open-source architecture.
✅ Designed a real-world applicable solution that demonstrates Polkadot’s strengths.

📚 What We Learned

Building smart contracts in Ink! and understanding Polkadot’s Substrate architecture.
Using PSP34 for interoperable NFT assets.
Integrating React with Polkadot.js for blockchain interaction.
Deploying contracts and managing metadata through IPFS.
Best practices for creating scalable DApps on the Polkadot ecosystem.