VerifiedKnock

VerifiedKnock provides a pre-arrival authentication system that lets residents verify an authorized official’s identity before any interaction. Officers authenticate with an ATKey.Card (FIDO2 biometric smart card) and tap an NTAG424 DNA NFC sticker at the resident’s door, triggering a cryptographically verified push notification. The system works without GPS, QR codes, or smart lock integration, delivering a tap-to-verify workflow as simple as a doorbell sticker and as secure as a bank card