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What's the difference?

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All stages · Demo 328

Swiss UID

Choice uid / vat / other. Nine digits after CHE; remainder 10 is invalid. Jev never weights them. Eight digits need 9.

ChoiceUID mod-11 in JS

A digit tape. 123456788 books a Zefix plate. A last-digit flip rejects. Eight digits never pass.

replaykind —uid —

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.