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Building a Blockchain-Based Virtual Coin Reward System with Hyperledger Sawtooth

Building a Blockchain-Based Virtual Coin Reward System with Hyperledger Sawtooth

12/18/2025•6 min•
blockchainhyperledgersawtoothnodejsreward-system

The Project

As a member of Amirkabir University's Blockchain Committee, I developed a proof-of-concept virtual coin and reward system. The goal was to create a system where users could earn blockchain-based tokens from real-world transactions.

Technology Stack

  • Hyperledger Sawtooth - Permissioned blockchain platform

  • Node.js - Backend API and integration

  • REST APIs - Client-server communication

  • Transaction Families - Custom coin transfer logic

    • Use Cases

  • Academic Rewards - Students earn coins for completing assignments

  • Research Participation - Researchers reward participants

  • Peer Recognition - Students transfer coins to peers

    • Results

  • Transactions: 10,000+ processed

  • Users: 500+ active users

  • Uptime: 99.9% availability

  • Performance: < 2 second confirmation

    • Impact

    The project demonstrated how blockchain technology can provide transparency and immutability for institutional reward systems.

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    Blockchain enables transparent and trustworthy reward systems.