Sub-100ms server-side. Zero duplicates.

Generate tickets by allocation, by persona, with QR codes ready to go.

Phone camera. Sub-100ms scan response. Four clear result states.

Every ticket scans exactly once, even with multiple gates scanning under pressure.

Scans queue on the device and replay in order when the network returns.

Every attempt captured with result and scanner identity.

Abuse protection without getting in the way of legitimate traffic.