PrivatePay-Mantle
The first on-chain untraceable, unidentifiable, private payments on Mantle. Powered by Elliptic Curve Diffie-Hellman (ECDH) + secp256k1 + BIP 0352 / EIP 5564 + ROFL DarkPool Mixer
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Description
The first on-chain untraceable, unidentifiable private payments on Mantle Network
Simply means: Stealth Crypto Payments using multilayer forks
Powered by ECDH + secp256k1 + BIP 0352/EIP 5564 + ROFL DarkPool Mixer
🚨 The Problem: Financial Privacy is Broken
Real-Life Story
Alice, a legendary dev, won the Move AI Hack and received $13,000 prize money.
Bob, another participant who won another prize in the same hackathon, discovered his co-founder wasn't trustworthy about receiving prize money. Bob texted all 12 winners asking for the organizer's wallet address. Within minutes, using blockchain explorers and intelligence tools, he identified:
Which wallet belonged to whom
Exactly how much each person received
Their entire transaction history
This is a serious concern. Nobody wants their wallet exposed — it makes them vulnerable to targeted attacks, extortion, and financial loss.
The Core Issues
❌ Payments on public blockchains are NOT private
Traceable through tools like Arkham Intelligence
Trackable via Dune Analytics and explorers
Identifiable by anyone with basic skills
❌ Results:
Fear of transacting
Inconvenience for legitimate users
Financial loss from targeted attacks
Privacy violations for everyone
✅ The Solution: PrivatePay

Where every transaction is fully private, anonymous, unidentifiable, and untrackable.
Core Benefits
✨ Sender privacy: Your wallet is never linked to the transaction
✨ Receiver privacy: Recipients' identities remain hidden
✨ Observer blindness: Third parties see nothing linkable
✨ Simple UX: Like Stripe links, but every transaction is a new, invisible wallet
Comparison with Other Privacy Solutions
Protocol | Privacy Type | UX | Scalability | Stealth Links |
|---|---|---|---|---|
Tornado Cash | Mixer | Poor | ⚠️ Limited pools | ❌ |
Railgun / ZK Mixers | ZK Circuits | Heavy friction | ⚠️ High gas costs | ❌ |
Monero / Zcash | Full chain privacy | Not composable | ⚠️ Separate chains | ❌ |
PrivatePay | Link-based stealth | ✅ Simple | ✅ Unlimited | ✅ |
Key Features
🔒 Infinite Untraceable Stealth Accounts
Each payment generates a fresh stealth sub-account
Unlimited transactions, unlimited mixers
One single DarkPool
💼 Static Payment Links
Share a single payment link (e.g.,
amaan.privatepay.me)Each access generates a unique stealth address
No complex setup required
🔐 Complete Unlinkability
Sender cannot identify receiver
Receiver cannot identify sender
Observers see nothing linkable
📱 Progressive Web App (PWA)
Install on mobile and desktop devices
Offline functionality with service worker caching
Push notifications for payment received events
Native app-like experience
📲 Mobile Wallet Support
Full iOS MetaMask mobile app integration
Android MetaMask support
Seamless deep linking and auto-connect
Optimized mobile connection flow
Works in MetaMask's in-app browser
🎯 Points & Rewards System
Earn points for various actions (payments, logins, etc.)
Leaderboard and rewards tracking
Level-based progression system
🚀 How It Works
Three-Step Process
1. Create Payment Link 🔗
User creates static payment link (e.g.,
amaan.privatepay.me)System generates meta address (static identifier)
Link can be shared publicly without privacy risk
2. Receive Payment 💸
Payer accesses link → generates unique stealth address
Payment sent to stealth address on Mantle Network
Transaction is unlinkable to recipient's identity
3. Manage Funds 💰
Recipient monitors stealth addresses automatically
Funds can be withdrawn to main wallet
Full transaction history in private dashboard
📊 Market Opportunity
Total Addressable Market (TAM)
Market | Size | Growth |
|---|---|---|
💰 Global payment processing | $160B annually | - |
🪙 Crypto payment market | $624M | 16.6% CAGR |
🔒 Privacy-focused solutions | $1.2B | Growing |
👥 Crypto users worldwide | 590M+ | Expanding |
Target Users
Individuals: Privacy-conscious crypto users
Freelancers: Receive payments without exposing income
Businesses: Accept payments without revealing revenue
DAOs: Anonymous treasury management
Hedge Funds: Private money movements
High Net Worth: Protection from targeted attacks
⚡ Future Roadmap
Phase 1: Core Platform ✅
✅ Stealth address generation
✅ Payment link system
✅ Dashboard and monitoring
✅ Mantle wallet integration (Desktop & Mobile)
✅ iOS/Android MetaMask mobile app support
✅ Progressive Web App (PWA) with offline support
✅ Points & rewards system
Phase 2: Enhanced Privacy 🚧
🚧 Zero-knowledge proofs (Plonky2)
🚧 Bulletproofs for amount hiding
🚧 Advanced DarkPool integration
🚧 ROFL-style monitoring
Phase 3: Payment Expansion 🔮
🔮 Private credit and debit card payments
🔮 Private cross-chain bridges
🔮 Disposable wallets
Phase 4: Enterprise Features 🔮
🔮 Hedge fund money moves
🔮 API marketplace
🔮 White-label solutions
🔮 Compliance tools
Endless Possibilities
No more "James Waynn Exposer" incidents
End to HyperLiquid wallet reveals
Protection for high-value transactions
Privacy for everyone, everywhere
📱 Progressive Web App (PWA)
PrivatePay is a fully functional Progressive Web App that can be installed on mobile and desktop devices.
Installation
Mobile (iOS):
Open PrivatePay in Safari
Tap Share → "Add to Home Screen"
Enjoy native app experience
Mobile (Android):
Open PrivatePay in Chrome or MetaMask mobile browser
Tap menu → "Add to Home Screen" or "Install App"
Connect wallet using MetaMask mobile app
Launch from home screen
Desktop (Chrome/Edge):
Look for install icon in address bar
Click "Install" when prompted
App opens in standalone window
PWA Features
✅ Offline Support - Cached assets work offline
✅ Push Notifications - Get notified when payments are received
✅ Fast Loading - Service worker caching for instant loads
✅ Native Experience - Standalone display mode
✅ Auto-Updates - Automatic service worker updates
Mobile Wallet Connection
PrivatePay supports MetaMask on both desktop and mobile devices:
Desktop:
Direct browser extension integration
Standard MetaMask connection flow
Mobile (iOS/Android):
MetaMask SDK integration for seamless mobile experience
Deep linking to MetaMask mobile app
Auto-connect when returning from MetaMask
Works in MetaMask's in-app browser
Optimized connection flow for mobile devices
🔗 Links & Resources
Pitch Deck: https://docs.google.com/presentation/d/1CZx4tTtaLhS0rbD4v0tlDC7OkFB0GPcWqbD43B9dXX0/edit?usp=sharing
Demo Video: https://youtu.be/8Jwvu0nj2yA
Pitch Video: https://youtu.be/p5Pgx0ZBUqA
Live Website: https://private-pay-mantle-three.vercel.app/
Progress During Hackathon
<p>Everything was built during the hackathon. Contracts, Frontend, Wallet Integrations, RPC issues resolved and done.</p>
Tech Stack
Fundraising Status
Not raised any till yet, looking to raise.