scale.fun
scale.fun: the on-chain launchpad for datasets, powered by real zk-verified humans
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About
scale.fun connects AI Labs needing labeled training data with a global, crypto-incentivized workforce on mobile. 📱 AI Labs upload raw datasets (images, audio, text) and set bounties in cUSD. Workers complete micro-labeling tasks on their phones through MiniPay and get paid instantly. All labeled datasets are stored on Filecoin and sold on our decentralized marketplace. Key features: 🔐 ZK-verified identity via Self Protocol (age/country verification for region-specific data labeling) 💰 Instant cUSD micropayments on Celo for each completed annotation 📦 Filecoin storage for immutable dataset archiving 🛒 Decentralized marketplace where AI Labs can buy/sell verified labeled datasets 🌍 Mobile-first design optimized for MiniPay users in emerging markets like Africa, Latin America, India 🇿🇦🇦🇷🇮🇳 This solves the massive bottleneck in AI development: getting high-quality, ethically-sourced training data at scale.
How it's made
Built as a Celo MiniApp using Next.js 14, optimized for MiniPay mobile wallets in emerging markets. ⚙️ Smart Contracts (Solidity): - DataAnnotateEscrow: Manages worker bounties and payouts in cUSD - DatasetMarketplace: Handles dataset sales with 15% platform fee - Deployed on Celo Mainnet (42220) 📦 Filecoin Integration: - Synapse SDK for uploading labeled datasets to Filecoin Calibration Testnet - Fast retrieval API for buyers to download purchased datasets - Stores both raw files and annotation JSON with content-addressed CIDs - Background upload queue to handle large dataset batches 🔐 Self Protocol (ZK Verification): - Zero-knowledge proofs for age/country verification without exposing PII - Enables task gating for location and age-specific data labeling requirements - Stored on-chain for trustless verification 🛠️ Tech Stack: - Frontend: Next.js 14, TailwindCSS, Wagmi/Viem for wallet connections - Backend: Supabase (PostgreSQL) for user data, annotations, and marketplace listings - Storage: Filecoin Calibration Testnet via Synapse SDK - Blockchain: Celo Mainnet (real cUSD payments) 💡 Hacky Bits: - Mixed testnet/mainnet: Self Protocol on testnet, but marketplace on mainnet - Background Filecoin uploads: Built queued API for 60-90s uploads - Mobile-first download: Custom component for MiniPay WebView constraints - Grouped dataset logic: Multiple files share one on_chain_dataset_id but separate CIDs