EvidenceHub AI

EvidenceHub AI is a decentralised two-sided research marketplace built on a pay-per-insight model using the x402 protocol, letting publishers monetise valuable research PDFs without exposing the raw document while researchers buy micro-targeted verified answers on-chain instead of full subscriptions. Publishers connect through Lute Wallet using their Algorand address as sovereign identity, upload proprietary PDFs and create specific insight questions priced in ALGO, with document metadata held in Firebase while the raw PDF text stays protected from public access. Researchers browse the marketplace, preview documents in a way that keeps the intellectual property safe while showing purchasable insights, and unlock an answer through an Algorand micro-transaction signed via Lute. Once confirmed on TestNet, Google Gemini acts as an impartial forensic escrow agent, extracting, verifying and citing the precise answer from the hidden PDF. Built with React, Vite and Tailwind over Node.js and Express with Firestore.