EmosiFloww

A decentralized time-capsule platform for storing encrypted digital memories and unlocking them at a scheduled time using blockchain smart contracts.

Features

• Time-locked multimedia storage
• Client-side AES-256 encryption
• Decentralized storage using Walrus
• Smart-contract-based scheduled unlocking
• ERC-721 NFT tokenization
• MetaMask wallet integration
• Images, videos, audio, and document support

Tech Stack

• Frontend: Next.js 15, React 19, TypeScript, Tailwind CSS
• Blockchain: Ethereum Sepolia, Hedera SDK
• Storage: Walrus Protocol
• Encryption: AES-256, SHA-256, PBKDF2
• NFTs: ERC-721
• Web3: ethers.js
• UI: Three.js, React Three Fiber, Motion

Architecture

File Upload
    ↓
Client-Side Encryption
    ↓
Walrus Decentralized Storage
    ↓
Smart Contract Time Lock
    ↓
ERC-721 NFT Minting
    ↓
Scheduled Decryption

Setup

git clone https://github.com/aaditya3301/EmosiFloww.git
cd EmosiFloww
npm install
cp .env.example .env.local
npm run dev

Open:

http://localhost:3000

Environment Variables

WALRUS_PUBLISHER_URL=your_walrus_publisher_url
WALRUS_AGGREGATOR_URL=your_walrus_aggregator_url
ETHEREUM_RPC_URL=your_sepolia_rpc_url
TIME_CAPSULE_CONTRACT=your_contract_address

Project Structure

EmosiFloww/
├── src/app/        # Next.js pages
├── src/components/ # UI components
├── src/lib/        # Encryption, NFT and blockchain logic
├── contracts/      # Solidity smart contracts
└── public/         # Static assets

License

Licensed under the MIT License.