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What's the difference?

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All stages · Demo 412

Kazakhstan BIN

Choice bin / vat / other. Twelve digits starting 4/5/6. Same two weight rows as IIN. Jev never mods 11. Eleven digits need the legal shape.

ChoiceBIN dual in JS

A digit tape. 400101300111 books a legal plate. A last-digit flip rejects. Eleven digits never pass.

replaykind —bin —

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.