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What's the difference?

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All stages · Demo 521

Benin IFU mill

Choice bj / dump / other. Nine digits starting 13; Luhn in JS. Jev never doubles from the right. Eight digits never pass. Distinct from Togo NIF.

ChoiceIFU 13-prefix Luhn in JS

A digit tape. 130000003 books a Benin IFU plate. A last-digit flip rejects. Eight digits stay short.

replaykind —ifu —

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.