OnChainDrips

NFC-enabled merch that mints into NFTs, proves attendance, enables trading, and powers networking.

OnChainDrips

Created At

HackMoney 2026

Project Description

👕 OnChainDrips - NFC-Enabled Merchandise for the Web3 Era

I don’t like the word “free.” Because when merch is free, it usually has no value.

It becomes just another T-shirt, worn once, forgotten later, and eventually buried somewhere in a closet. And that’s sad, because merch should mean something.

OnChainDrips started with a simple belief: 👉 Merch should carry value, identity, and information and not just a logo.


🧵 What is OnChainDrips?

OnChainDrips is a B2B merchandise partner for Web3 companies, helping protocols, exchanges, and ecosystems create high-quality merch for conferences, hackathons, and community events around the world.

But we didn’t stop at printing T-shirts.

We asked: What if merch actually mattered? What if it could be owned, verified, traded, and even used for networking?

That’s where NFC-enabled T-shirts come in.


📲 From T-shirt → Tap → On-chain Asset

Each OnChainDrips T-shirt comes with an embedded NFC tag and is linked to a unique on-chain asset under a specific event drop for example: Bybit Token2049 Dubai – Exclusive Drop.

Here’s how it feels for an attendee 👇

1️⃣ You grab a T-shirt at the event 2️⃣ You tap your phone on it 📱 3️⃣ You log in using Google (no wallets, no seed phrases) 4️⃣ You mint the NFT — gasless, sponsored by us 5️⃣ Boom 💥 the T-shirt is now yours, both physically and on-chain

No friction. No crypto anxiety. Just a clean Web2-like experience.


🧾 What does the NFT represent?

Each NFT acts as:

  • 🎟 Proof of Attendance
  • Proof of Authenticity
  • 🖼 A digital collectible tied to a real physical item

Scarcity is enforced by design. If a drop has 100 T-shirts, only 100 on-chain assets can ever exist. Period.

You can reserve or bid for exclusive pieces during events, mint them to your wallet, and manage your entire collection directly from the OnChainDrips platform.


🤝 Merch as a Networking Primitive

Here’s where it gets really interesting.

Your T-shirt isn’t just merch — it’s identity.

Owners can optionally attach:

  • Name
  • Role
  • Social links
  • Portfolio or ENS details

Now imagine this at an event 👀 You meet someone, tap their T-shirt… …and instantly get their verified profile.

No awkward phone exchanges. No “bro what’s your Twitter?” Just tap → connect → move on.

Networking, but effortless.


How it's Made

⚙️ Technology Stack & How It All Fits Together

We built OnChainDrips with a modular, Web3-first architecture, but with a strong focus on real-world usability.


⛓️ Sui Blockchain

Sui is our core blockchain layer.

Each T-shirt maps to a unique on-chain object, giving us:

  • 1:1 mapping between physical merch and digital ownership
  • Verifiable ownership & transfers
  • Guaranteed scarcity per event drop

We use zkLogin on Sui, so users can sign in using Google — no seed phrases, no prior crypto knowledge, but still a real self-custodial wallet under the hood.


🗂️ Walrus (Decentralized Storage)

Walrus is used to store:

  • NFT images
  • T-shirt artwork
  • Drop metadata (event, brand, rarity)
  • Future unlockable experiences

Only lightweight references live on-chain. Heavy data stays decentralized, verifiable, and retrievable via Walrus.


🪪 ENS (Identity Layer)

If a user owns an ENS name, we fetch and attach:

  • Display name
  • Social links
  • Public identity details

This turns every T-shirt into a portable identity badge.


💛 Yellow (Bidding & Reservations)

For reserving and bidding on limited drops, we use Yellow with test USDC on Sepolia.

This enables:

  • Seamless bidding and reservations
  • Web2-style UX
  • No wallet popups
  • No message signing

Basically: crypto rails, but zero crypto friction.


⚡ Sponsored Transactions

All minting transactions are sponsored by OnChainDrips:

  • No gas fees for users
  • Instant minting at events
  • First-time users don’t need tokens

Perfect for noisy, fast-paced conference environments.


🧩 Additional Tech

  • Next.js + TypeScript for the frontend
  • Supabase backend and offchain storage for orchestration, validation, and gas sponsorship
  • NFC hardware integration to bridge physical and digital worlds
  • Decentralized identity principles so users always own their assets and data

🌍 The Outcome

By combining physical merchandise, NFC interaction, on-chain ownership, and decentralized storage, OnChainDrips turns event merch into:

  • 🎁 Collectibles with real value
  • 🧾 Proof of participation
  • 🪪 Identity & networking tools
  • 🧠 Cultural artifacts of Web3 history

OnChainDrips doesn’t make “free merch”.

We make merch you actually care about. Merch you wear, own, trade, and remember. 🚀

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