The problem DivitaNet solves

Current cloud storage solutions are centralized, expensive, and vulnerable to censorship and security breaches. DivitaNet provides a decentralized alternative where users can securely share files with an expiry mechanism, ensuring data is not permanently stored unnecessarily. Users can also set access-based micropayments, enabling a new model for content monetization.

User Interaction and Data Flow

1. File Upload: Users upload files via the frontend. The files are encrypted and stored on IPFS/Filecoin.

2. File Expiry & Access Rules: Users set expiry times and define access policies, including optional micropayments via Ethereum smart contracts.

3. Sharing: The system generates a unique access link. If payment is required, the smart contract ensures that the payment is settled before granting access.

4. File Retrieval: When accessed within the validity period, the file is decrypted and delivered. After expiry, the file reference is removed, ensuring data privacy.

5. Rewards System: Users who contribute storage or bandwidth may earn rewards through staking mechanisms.

The project architecture and development process

1. Frontend: Next.js/React for a seamless and interactive UI.

2. Storage: IPFS for decentralized, distributed file storage. (Pinata)

3. Smart Contracts: Ethereum-based contracts manage file expiry, access control, and payments.

4. Backend & Middleware: Node.js and Express for handling API requests and interactions with smart contracts.

5. Wallet Integration: MetaMask for user authentication and transactions.

6. Security: End-to-end encryption, smart contract audits, and zero-knowledge proofs for privacy.

Product Integrations

Ethereum (Smart Contracts for access and payments)

Pinata (Decentralized storage)

Next.js/React (Frontend framework)

MetaMask (User authentication and payments)

Node.js & Express (Backend API and middleware)

Key differentiators and uniqueness of the project

1. Decentralized & Ephemeral: Unlike traditional cloud storage, files are not permanently stored, reducing unnecessary data accumulation.

2. Automated Expiry: Files self-destruct after the set time, ensuring privacy and security.

3. Optional Monetization: Users can set micro-fees for access, introducing a novel revenue model.

4. User-Controlled Encryption: Ensures only intended recipients can access shared files.

5. Interoperable with Web3 Apps: Can integrate with other decentralized apps for expanded functionality.

Trade-offs and shortcuts while building

Gas Fees: Ethereum transactions can be costly, so we are considering Layer 2 scaling solutions (e.g., Arbitrum or zkSync).

Storage Costs: Filecoin is cost-efficient, but retrieval speed varies. Future iterations may use hybrid storage approaches.

UX Complexity: While decentralization enhances security, onboarding new users unfamiliar with Web3 may be challenging. We are implementing guided tutorials and UI improvements.

Smart Contract Audits: Due to time constraints, we may initially launch without third-party audits but plan to conduct them post-hackathon.

Photo Displaying: There is a small error when displaying the photograph, on clicking the photograph it is visible.

Live: There is some issue in github pages which doesn't allow me to go live the site, but i had attached all necessary files for it.