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What's the difference?

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All stages · Demo 371

Venezuela RIF

Choice rif / vat / other. Letter V/E/J/P/G plus nine digits. Jev never maps the letter. Eight digits need the check.

ChoiceRIF letter map in JS

A digit tape. J123456784 books a SENIAT plate. A last-digit flip rejects. Eight digits never pass.

replaykind —rif —

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.