{"product_id":"prima-evidence-source-code","title":"Prima Evidence - Source Code","description":"\u003cp\u003eA 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.\u003c\/p\u003e\n\u003cp\u003eDelivered 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.\u003c\/p\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e","brand":"Vlaander LTD","offers":[{"title":"Default Title","offer_id":47279392260258,"sku":null,"price":35000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1986\/6018\/files\/poster4.png?v=1779497072","url":"https:\/\/vlaander.com\/products\/prima-evidence-source-code","provider":"Vlaander LTD","version":"1.0","type":"link"}