HIMITSU.

Turning wallet addresses into communication endpoints.

Himitsu started from a simple Web3 usability question: if a wallet already acts as a persistent identity and transaction endpoint, why should communicating with that identity require leaving the wallet context?

The problem

Onchain users routinely interact through addresses but coordinate elsewhere—in Discord, Telegram, email, or other systems that break identity continuity and create new trust surfaces.

The concept

Himitsu explored encrypted wallet-to-wallet messaging across chain contexts, using blockchain-native identity as the starting point for private communication.

What I worked on

• Product framing and user flow for wallet-based communication.
• EVM-oriented implementation thinking around wallet interaction and transaction lifecycle concepts.
• Cross-chain positioning and the experience of moving from a wallet identity into a private conversation.
• Hackathon-speed prototyping: narrowing scope, building quickly, and communicating the value proposition under time pressure.

Why it matters

The project pushed beyond token movement and treated wallets as application primitives. That same mental model now shows up in agentic commerce, identity, coordination, and programmable financial products.