Decentralized Reputation System

A Soroban smart contract on the Stellar testnet that enables users to build and query on-chain reputation through peer reviews.

✨ Features

• Submit reputation reviews with scores from -10 to +10
• Prevents self-reviews
• Authenticated transactions (address-based)
• Tracks total, positive, and negative reviews
• Returns a normalized reputation score (0–100)
• Fully on-chain and immutable

🛠 Tech Stack

• Blockchain: Stellar (Testnet)
• Smart Contracts: Soroban
• Language: Rust
• CLI: Stellar CLI

📦 Contract Functions

• submit_review(reviewer, reviewee, score, comment)
• get_reputation(user) -> (total_score, positive, negative, total, normalized)

🚀 Deployment

The contract is deployed on Stellar Testnet.

Contract ID: CDPJYSJJUMQXMUVTURYYAQWBWVVKOD3OED6A6UTNYYB3LKH53KTLGRJA

🧪 Example

stellar contract invoke \
  --id <CONTRACT_ID> \
  --source-account dev \
  --network testnet \
  -- get_reputation \
  --user user2 

🔮 Future Improvements

-Weighted reviews -Review history & pagination -Time-based reputation decay -Category-based reputation