MYRAD — Decentralized Data Marketplace

Architecture

MYRAD is a decentralized data marketplace built on the Base blockchain that enables users to tokenize, trade, and monetize datasets through an automated market maker (AMM) system.

System Components

Smart Contracts

DataCoin (ERC20): Represents individual datasets as ERC20 tokens with burn functionality
BondingCurve: Constant product AMM (x × y = k) for trading dataset tokens against USDC
DataCoinFactory: Creates new DataCoin tokens and manages dataset metadata
DataTokenMarketplace: Legacy marketplace contract for older tokens

Frontend

React 18 with TypeScript
Wagmi for Web3 wallet connections
Vite for fast development and building
TailwindCSS for styling
React Router for navigation

Backend

Express.js REST API server
ethers.js v6 for blockchain interactions
Event Listener: Monitors blockchain for burn events and grants download access
PostgreSQL: Stores dataset metadata, user connections, and transaction history
IPFS/Lighthouse: Decentralized storage for dataset files

Blockchain Network

Base Sepolia (Testnet)
USDC as the base trading pair

How It Works

Dataset Upload: Users upload datasets to IPFS via Lighthouse, receiving a CID (Content Identifier)
Token Creation: A DataCoin ERC20 token is minted representing the dataset
Pool Initialization: Creator seeds liquidity pool with tokens and USDC (e.g., 900,000 tokens + 1 USDC)
Trading: Users can buy/sell tokens using the constant product AMM formula
Burn for Access: Users burn tokens (minimum $0.5 worth) to unlock dataset download access
Access Control: Backend listener detects burn events and issues JWT tokens for secure download links

Key Features

Tokenization: Each dataset is represented as an ERC20 token
Automated Market Making: Constant product formula ensures liquidity
Burn-to-Download: Access control through token burning
Fee Distribution: 5% fee on buys (80% to liquidity, 5% to creator, 5% to treasury)
Decentralized Storage: Datasets stored on IPFS with Lighthouse gateway
Real-time Updates: Event listener monitors blockchain for instant access grants

Demo

Walk Through Demo

This guide will help you get started step by step

1. Launch the App & Connect Your Wallet

Hit Launch App and connect your wallet.

Connect Wallet

2. Get Testnet USDC + ETH

Visit the faucet and grab some USDC and ETH for testing

Faucet

3. Buy, Sell, or Burn a Dataset

Try interacting with any dataset in the Feed or Marketplace:

Buy
Sell
Burn for access

Dataset Actions

Burn to Download

To download any dataset, you must burn a minimum of $0.5 worth of tokens. After burning, your download button will automatically unlock. You can then click Your Dataset is ready, download it to access the dataset.

Ready For Download

Once unlocked, the content will stay available for you anytime.

4. Upload Your Own Datasets

You can also upload your own dataset and test how everything works