Building GhostPass at Monad Web3 Hackathon

Recently, I had the chance to participate in the Monad Web3 Hackathon, and it was an amazing experience - intense, fun, and deeply satisfying. Here's a quick breakdown of what went down, what we built, and what made the day special.

What is Monad?

Monad is a high-performance, EVM-compatible Layer 1 blockchain. It’s been re-invented from the ground up to optimize both consensus and execution, enabling up to 10,000 transactions per second (TPS). This hackathon gave us a chance to explore its blazing-fast infrastructure hands-on.

What We Built - GhostPass

We built GhostPass, a privacy-focused platform for anonymous wallet verification on the blockchain. In simple terms:

Users can prove wallet ownership and show verified status without exposing personal information.

It’s all about privacy + proof - think of it as a zk-pass for wallets. You can checkout the code here Github. Dont judge us based on the stuff we wrote there due to time constraints T-T

Tech Stack:

Frontend: Next.js (React), TypeScript
Backend: Node.js, Express, ethers.js
Blockchain: Ethereum (Hardhat for smart contract deployment & testing)
Wallets: MetaMask and any EIP-1193-compatible wallet

How It Went

Time absolutely flew by. When I reached the venue (late by 30 minutes due to traffic), I was honestly blown away - it was a villa setup with chill music, a swimming pool, and breakfast waiting at the entrance. The vibes? Immaculate.

We had no set plan when we arrived, but soon I synced up with Kshitij (aka knk) and we decided to roll with an idea around anonymous wallet verification.

With only 6 hours to build, we didn't waste time. At first, we were a bit lost on how to divide the work, but our communication clicked instantly. We shared one ChatGPT tab, brainstormed, and began parallel development.

🔌 By lunch: API and frontend were ready.
📜 Smart contract: Deployed and tested.
🍲 Lunch: Shared a great meal with friends (some of them were super extroverted, unlike me 😅).

In the last 2 hours, we focused on integration and polishing. With just 1 hour left, we were wiped out but happy - GhostPass was fully functional.

We stepped outside to relax in the garden, grabbed some snacks, and talked about life before submitting our project. Honestly, it was one of those "we did it!" moments.

Why We Missed the Demo

We wanted to give the demo but knew it would take a while for our turn, and knk had to travel back to Bannerghatta from Whitefield - not ideal at 9 PM. So we submitted the form and left early at 7pm itself. Even with that, I reached home by 9:30 PM and knk by 10:40 PM.

Final Thoughts

This hackathon wasn’t exhausting - it was fun, challenging, and rewarding. Got my hands dirty in Web3, worked with amazing people, and built something I’m genuinely proud of.

Until next time, Monad! 🙌