🌿 VanaSetu: Ayurvedic Supply Chain Traceability

Restoring Trust in Ancient Wisdom through Modern Technology.

VanaSetu (Vana - Forest, Setu - Bridge) is a state-of-the-art, end-to-end traceability platform designed to bridge the transparency gap in India's Ayurvedic supply chain. By integrating AI-driven identification, Blockchain immutability, and Real-time IoT data, VanaSetu ensures that every herb used in Ayurvedic formulations is authentic, pure, and ethically sourced.

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🏗️ Core Pillars

1. 🛡️ The Blockchain & Security Layer (The "VanaLedger")

At the heart of VanaSetu is a sophisticated security architecture that prevents data tampering and "Trust-Dilution."

• SHA-256 Cryptographic Hashing: Every critical event (Collection, Lab Verification, Manufacturing) is passed through a SHA-256 algorithm. This creates a unique "Digital Fingerprint" of the data payload.
• Immutable Anchoring: These hashes are anchored to a permissioned blockchain ledger (Hyperledger Fabric architecture). Once a record is committed, it cannot be deleted or altered by any participant.
• Tamper-Evidence: Any attempt to modify the database records (like changing the weight or purity after the fact) will cause a "Hash Mismatch," instantly alerting all stakeholders in the chain.
• Double-Spending Prevention: The system tracks the "Mass Balance" of every batch. A manufacturer cannot sell more "Verified" units than the physical weight of raw material received from the lab.

2. 🧠 AI-Powered Verification

• Edge AI (TFLite): The Collector App uses a MobileNetV2-based computer vision model to verify herbal species at the forest floor, preventing misidentification or accidental harvest of toxic look-alikes.
• Confidence Scoring: Only collections with a high AI confidence score (typically >85%) are passed through the "Green Channel."

3. 🔬 Clinical Accountability

• Digital Handshakes: A physical-to-digital bridge where Labs re-verify the collector's claims (Weight, Purity, pH, Heavy Metals).
• Trust Score Algorithm: A dynamic 100-point score calculated from AI confidence, lab purity, weight consistency, and contamination tests.

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* **LAB REPORT**

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📱 Project Components

Component	Technology	Role
Android App	Kotlin, TFLite, Retrofit	Edge-collection, GPS-tagging, AI-verification.
Backend	FastAPI, PostgreSQL, SQLAlchemy	The API Engine & Mock Blockchain Controller.
Dashboard	React, Vite, Framer Motion	B2B interface for Labs and Manufacturers.
Consumer Portal	Leaflet.js, QR Integration	The "Last Mile" transparency interface for users.

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🛠️ Installation & Setup

🚀 Automatic Setup

To install all dependencies (Python and Node.js) in one go, run the following in PowerShell:

./setup.ps1

🐍 Backend Setup (FastAPI)

cd backend
pip install -r requirements.txt
uvicorn main:app --reload

⚛️ Frontend Setup (React)

cd frontend
npm install
npm run dev

🤖 Android Setup (Kotlin)

1. Open the /android folder in Android Studio.
2. Ensure you have the mobilenet_v2_5_classes.tflite model in the assets/ folder.
3. Update the BASE_URL in MainActivity.kt to point to your backend (or your Ngrok URL for mobile testing).

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🛤️ The VanaSetu Journey

graph LR
    A[Forest Collector] -- AI Verify + GPS --> B[VanaLedger Hash]
    B -- Transit --> C[Certified Lab]
    C -- Chemical Test --> D[Trust Score Update]
    D -- Manufacturing --> E[Final Product QR]
    E -- Consumer Scan --> F[Full Traceability Report]

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⚖️ License

This project is developed for the VanaSetu Sustainability Initiative. All rights reserved.