Prima Evidence - Source Code

A blockchain-based proof-of-authorship platform that creates permanent, tamper-proof records of digital documents on the Arweave blockchain. Files are hashed client-side and never leave the browser; the resulting proof is written immutably on-chain, with a single endpoint to verify any hash against it later.

Delivered as a complete, deployable source codebase: a Cloudflare Workers edge backend (Hono, KV, Durable Objects, JWT auth, Arweave integration, payment processing) and a React 18 + TypeScript frontend with a user dashboard and admin panel. Authentication uses scrypt password hashing and JWT; every endpoint is rate-limited and input-validated; the full stack deploys to Cloudflare's edge for global low-latency.

This is the proof-of-authorship product as source you own and operate under your own brand — backend, frontend, payment and email integration, API documentation, and CI/CD workflows — sold outright as proprietary source.