Veritag - Passeport produit NFC & blockchain

A cryptographic NFC seal and blockchain passport that authenticates a physical product. An NTAG 424 DNA chip signs every scan (AES-128 SUN cryptogram) and a Solana NFT anchors provenance; the buyer taps the bottle with a phone — no app — and reads AUTHENTIC or NOT AUTHENTIC. Because the tap counter stamped into the URL only ever goes up, a cloned chip is caught and named. Aligned with the EU Digital Product Passport, mandatory from 2027.

• Next.js
• Solana
• NFC / NTAG 424 DNA
• AES-128
• Prisma
• PostgreSQL
• Arweave
• Tailwind CSS

• Market research
• Applied cryptography
• Risk analysis
• Product vision