Validating China’s Unified Social Credit Identifier (USCI) with ISO 7064 Check Digit

Описание и применение

Проверка кода регистрации компании в Китае (USCI) с помощью контрольной цифры ISO 7064 позволяет мгновенно выявлять ошибки и предотвращать мошенничество при импорте.

Задача

Importers often receive supplier business licences with 18‑character USCI codes that may contain typos or fabricated numbers, risking costly errors in sourcing and compliance.

Результат

The check digit algorithm detects 100 % of single‑character substitution errors across 2.9 million simulated cases, outperforming the US VIN system (92.5 %).

Рабочий процесс

• 1. Copy the 18‑character USCI from the supplier licence.
• 2. Run the provided JavaScript validateUSCI function in a browser console or Node.js environment.
• 3. If the function returns true, the USCI is structurally valid; if false, flag the code for further investigation.
• 4. Optionally, paste the USCI into the free online verifier at https://currawongweb.com/verify/ to cross‑reference against official Chinese registry data.

Доказательства

Result: 100% detection of single-character substitutions across 2.9 million simulated errors.

Источник

I built a free tool that does this validation plus a manual cross-reference against official Chinese registry data: https://currawongweb.com/verify/

Источник