Cal Hacks 12.0 ยท 2025

Block Bazaar

Decentralized marketplace where creators sell encrypted content directly to fans.

GitHubDevpost
Block Bazaar screenshot

Problem

Creator platforms like Patreon take large fees and keep control of creators' work and payouts.

What it is

A Web3 alternative to Patreon on the Sui blockchain. Move smart contracts handle payments and access, content is encrypted with Seal and stored on Walrus, and buyers can decrypt it only after paying the creator directly, with no middleman.

Highlights

  • Move smart contracts for direct creator payments and access control
  • Content encrypted with Seal, stored on Walrus, and decrypted only after purchase
  • Sui SDK blockchain backend integrated with a React/TypeScript frontend

Stack

  • Sui
  • Move
  • Sui TypeScript SDK
  • Seal
  • Walrus
  • React
  • TypeScript
  • Tailwind CSS