QRkoodia

QRkoodia is a hypothetical open-standard framework for enhancing QR codes with dynamic, verifiable metadata. It specifies a two-layer approach that separates the printed carrier from the content it references, allowing the information associated with a scan to be updated remotely without reprinting.

Technical design: a printed QRkoodia code encodes a compact identifier, not the full content. A QRkoodia resolver uses that identifier to retrieve a manifest, typically delivered as JSON, which describes the content, allowed actions, expiration, and a cryptographic signature for authenticity. This design enables content freshness and the ability to verify origin and integrity at the time of use.

Security and privacy: manifests are digitally signed and can be bound to a trusted store. Optional privacy controls let publishers limit data exposure; in environments with limited connectivity, decoders may provide cached or restricted functionality while still maintaining a verifiable link to the published manifest.

Applications and limitations: QRkoodia is intended for marketing campaigns, event tickets, product packaging, and public information systems. The approach offers improved content updates and fraud resistance but requires devices with compatible decoders and reliable access to the resolver, which can affect offline use and system deployment.

See also: QR code, dynamic QR code, digital signature.