Brazilian Certificate Number Validator
Validate Brazilian birth, marriage or death certificate numbers in the 32-digit CNJ format. Browser-side verification.
How does the validation work?
The validation checks that the number has 32 numeric digits, that the state code (positions 17-18) is between 01 and 28, and that the two final check digits are consistent with the other fields according to the CNJ algorithm.
The check runs entirely in your browser.
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