💡 RepuFi – Rent-a-Reputation

RepuFi is a decentralized reputation lending protocol where trusted users (Backers) can vouch for low-rep users (Borrowers) by staking PAS tokens and issuing on-chain SoulBound Tokens (SBTs). This builds a trust layer for Web3 platforms like DAOs, grant programs, and job portals.

🔗 Live Demo: https://repufi.vercel.app
🔗 Job Portal Integration: https://jobportal-eosin-eta.vercel.app

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🧠 Core Philosophy

🔍 AI-Powered Reputation

• RepuFi uses an AI-based reputation scoring engine that analyzes 11 GitHub profile features:

  • Followers
  • Following
  • Public repos
  • Stars received
  • Forks
  • Contributions
  • Commit history
  • Gists
  • Activity frequency
  • Account age
  • Recent activity streak

• A GitHub score (0–10) is generated:

  • 📉 < 7 → Low rep (Borrower)
  • 📈 ≥ 7 → High rep (Backer)

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🧩 How RepuFi Works

👥 Two User Roles

Role	Description
👨‍🎓 Borrower	A new user with low reputation who wants to gain trust in Web3.
👨‍🔬 Backer	A reputed user who vouches by staking tokens and issuing a trust badge (SBT).

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🔁 Vouch + Challenge Flow

1. Backer Vouches for Borrower

• Backer connects wallet
• Chooses a borrower (with GitHub score < 7)
• Stakes PAS tokens as a trust guarantee
• RepuFi mints a VouchNFT (SBT) to both:
  • Backer and Borrower wallets
  • Metadata includes:
    • 🪪 Backer and Borrower address
    • 📜 Reason for vouching
    • 💰 Staked PAS amount
    • 📊 GitHub score snapshot
    • ⏳ Expiry date (30 days)
    • 🖼️ SVG badge image
    • 🧠 AI-reputation metadata (via Pinata/IPFS)

2. Borrower Uses the SBT

• Borrower uses the SBT to:
  • Apply for grants
  • Access exclusive DAOs
  • Get verified badges
  • Request micro-loans
  • Apply for jobs

3. Third-Party Challenge (New Feature)

• Any user can challenge a Borrower if they suspect fraud
• Admin reviews:
  • ✅ If challenge is valid:
    • Backer’s stake is slashed
  • ❌ If challenge is invalid:
    • Stake remains locked until expiry

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🧠 Smart Contract Logic

Function	Description
createVouch()	Backer stakes PAS and mints the Vouch SBT
releaseStake()	Backer withdraws stake after expiry if no valid challenges
slashStake()	Admin slashes the stake on confirmed fraud/challenge

✅ Soulbound — VouchNFTs are non-transferable
📁 On-chain — All vouches recorded on PassetHub Testnet
🌐 Metadata — GitHub score snapshot and custom SVG stored on Pinata/IPFS

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🔐 Deployment Details

• Network: PassetHub Testnet (Polkadot ecosystem)
• SBT Contract Address:
  0x3a02d771336d524ad9e48ef9b9f6cb24a320a516

Parameter	Value
Chain ID	420420421
RPC URL	https://testnet-passet-hub-eth-rpc.polkadot.io
Block Explorer	Blockscout
Faucet	Request PAS

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🌐 Job Portal Integration

• Employers can verify a developer’s reputation from the RepuFi protocol
• A Chrome extension fetches GitHub ID + Wallet Address from the site:
  • If a valid SBT exists, it is displayed as proof of verified backing
  • If none exists or the SBT has expired, the candidate appears unvouched

🔗 Try It Out

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🔮 Future Roadmap

• ✅ Third-party Challenge Feature (Done)
• 🔁 Trust Marketplace (Paid Vouching)
• 🏅 Reputation Streaks & Leaderboard
• 🔗 Multi-platform ID Integration (Gitcoin, Lens)
• 🧾 DAO-based reputation voting via SBTs
• 🔓 Unlockable Access via SBTs (e.g., grants, forums)

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📢 Contributors

Ishaan Bansal

Rohan Garg

Pratik Kapure

Sumanth

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💬 Have Feedback?

Open an issue or reach out to any of the contributors on GitHub.
We’d love to hear how RepuFi can support your Web3 journey 🚀