🏋️‍♂️ FitStake – AI-Verified Fitness Competitions on Web3

Stake. Sweat. Win.
Real-time pose detection meets blockchain staking for verifiable fitness competitions.

� What We Built

FitStake is ## 📜 Contract Addresses

Sepolia Testnet

• RoomFactory: 0x9839385033B11C2678BE017fA774BC05970775bA

Flow Testnet

• RoomFactory: 0x9dd8fbDDEE26E7DdFE19D0cc8BDf01A1144c8340

🎯 Our Vision

"Making fitness competitions trustless, transparent, and rewarding through AI verification and blockchain technology."ess competition platform that combines AI-powered pose verification with on-chain staking. Users can create fitness rooms, stake crypto, and compete in real-time workouts verified by MediaPipe pose detection and dynamic scoring algorithms.

✨ Live Features

• 📷 Real-time Pose Detection: MediaPipe runs in-browser for instant rep counting
• 🎯 Dynamic Form Scoring: Advanced algorithm analyzing Range of Motion, Tempo, and Consistency
• 💰 Stake-to-Compete: Create or join rooms with crypto stakes
• 📱 Mobile-First UI: Responsive design with auto-closing sidebar
• ⚡ Performance Optimized: 10 FPS detection with frame limiting
• 🔒 On-Chain Verification: Smart contracts handle stakes and payouts

🏗️ Architecture

[📱 Browser Camera] → [🤖 MediaPipe Pose Detection] → [📊 Dynamic Scoring]
                                    ↓
[💻 Next.js Frontend] ← [⛓️ Smart Contracts] → [💰 Reward Distribution]

Tech Stack

• Frontend: Next.js 15, TypeScript, shadcn/ui, Tailwind CSS
• Pose Detection: MediaPipe Tasks Vision v0.10.3
• Blockchain: Hardhat 3, Solidity, viem, wagmi v2
• Networks: Sepolia Testnet, Flow Testnet, Polygon (planned)
• Package Management: PNPM workspaces

🎮 How It Works

1. Create Competition Room

• Set exercise type (squats, pushups, bicep curls)
• Define stake amount and duration
• Deploy room contract on-chain

2. Real-Time Workout

• Camera captures pose landmarks
• MediaPipe counts reps with pose angle analysis
• Dynamic scoring based on:
  • Range of Motion (40%) - How deep/complete each rep is
  • Tempo Control (35%) - Proper speed and timing
  • Form Consistency (25%) - Smoothness and control

3. On-Chain Settlement

• Submit workout results to smart contract
• Automated reward distribution to top performers
• Transparent, verifiable competition outcomes

🚀 Quick Start

Prerequisites

• Node.js 18+
• PNPM package manager
• MetaMask or Web3 wallet

Installation

git clone <repo-url>
cd eth-global
pnpm install

Development

# Start web frontend
pnpm -F web dev

# Deploy contracts (separate terminal)
pnpm -F blockchain hardhat ignition deploy ignition/modules/RoomFactory.ts --network sepolia

# Generate contract types
pnpm -F web wagmi generate

Access the App

1. Connect your wallet (Sepolia testnet)
2. Create a new fitness room
3. Start camera and begin workout
4. Watch real-time rep counting and scoring!

💡 Key Innovations

🤖 Advanced Pose Analysis

• Multi-angle Detection: Tracks 33 pose landmarks in real-time
• Exercise-Specific Logic: Custom angle calculations for different workouts
• Intelligent Rep Counting: Peak detection with configurable thresholds
• Form Quality Scoring: Fit-wise inspired algorithm for comprehensive analysis

⚡ Performance Optimizations

• Frame Rate Limiting: Optimized to 10 FPS to prevent browser crashes
• Monotonic Timestamps: Solved MediaPipe timestamp conflicts
• Rep-Based Analysis: Scoring only on completed reps, not every frame
• Smart Logging: Detailed debugging without console spam

📱 Mobile-First Design

• Responsive Sidebar: Auto-hiding on mobile with logo button
• Statistics Cards: Separate cards for rep count and form score
• Touch-Friendly Controls: Large buttons and intuitive navigation
• Accessibility: Screen reader support with proper ARIA labels

🏆 Current Implementation Status

✅ Completed

• Real-time MediaPipe pose detection
• Dynamic scoring algorithm (ROM + Tempo + Consistency)
• Smart contract room system
• Mobile-responsive UI with statistics cards
• Performance optimizations and error handling
• Wallet integration with wagmi v2

🔄 In Progress

• AI agent verification layer
• IPFS session storage
• Multi-user competition logic
• Advanced anti-cheat mechanisms

🗺️ Roadmap

• Live multiplayer competitions
• Wearable device integration
• ZK-proof verification
• Cross-chain deployment
• SDK for third-party integration

🛠️ Technical Details

Smart Contracts

// Core contracts in /blockchain
RoomFactory.sol     // Factory for creating competition rooms
Room.sol           // Individual competition logic

Frontend Structure

/web/src/
├── components/
│   ├── MediaPipeWorkout.tsx     // Main workout interface
│   ├── AppSidebar.tsx          // Navigation with mobile support
│   └── ui/                     // shadcn/ui components
├── lib/
│   ├── mediapipe-utils.ts      // Pose detection & scoring logic
│   ├── wagmi.ts               // Web3 configuration
│   └── contracts.ts           // Contract interactions
└── app/
    └── (app)/room/            // Competition pages

Pose Detection Pipeline

1. Camera Stream: Browser MediaStream API
2. Pose Landmarks: MediaPipe extracts 33 3D points
3. Angle Calculation: Custom geometric calculations for exercise-specific joints
4. Rep Detection: Peak finding algorithm with configurable thresholds
5. Form Scoring: Multi-factor analysis with weighted components

🏅 Demo Highlights

• 🎯 Accurate Rep Counting: Tested across different exercise types
• 📊 Real-time Scoring: Instant feedback on form quality
• 💳 Wallet Integration: Seamless Web3 onboarding
• 📱 Mobile Experience: Works great on phones and tablets
• ⚡ Performance: Smooth 10 FPS detection without lag

👥 Contributing

This is a hackathon project showcasing the potential of AI-verified fitness competitions on blockchain. The codebase demonstrates key concepts and can be extended for production use.

⚠️ Disclaimers

• Testnet Only: Currently deployed on Sepolia and Flow testnets
• Demo Purpose: Simplified verification for hackathon scope
• No Financial Advice: Educational project only

📜 Contract Addresses

Sepolia Testnet

• RoomFactory: 0x9839385033B11C2678BE017fA774BC05970775bA

Flow Testnet

• RoomFactory: 0x9dd8fbDDEE26E7DdFE19D0cc8BDf01A1144c8340

� Our Vision

"Making fitness competitions trustless, transparent, and rewarding through AI verification and blockchain technology."