The last digit in the Finnish invoice reference number is the verification number, which is calculated by this formula.
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Nov 28, 2018 - PHP
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reference-number
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A Deno based system for generating / managing ASNs for documentat management systems in a collaborative environment.
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Dec 1, 2025 - TypeScript
Go implementation of Finnish viitenumero
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Sep 8, 2025 - Go
Chrome extension that auto-formats ID numbers, CPR codes, FBR reference numbers, and CNIC as you type. Real-time hyphen insertion, smart field detection, customizable patterns, and website whitelist. Built with Manifest V3. No data collected. Built with a lot of precision by Haseeb Kaloya.
javascript chrome-extension productivity browser-extension content-script pakistan cnic reference-number fbr manifest-v3 auto-format haseebkaloya id-formatter cprnumber tax-portal
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Mar 5, 2026 - HTML
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