algorithm - How is a check digit calculation done in Ruby? - Stack Overflow
Machine Readable Zone (MRZ) Decoding
Understanding: Machine Readable Zone - iDenfy
Understanding: Machine Readable Zone - iDenfy
c# MRZ TDI1 Check Digit doesn't match with check digit number - Stack Overflow
GitHub - Arg0s1080/mrz: Machine Readable Zone generator and checker for official travel documents sizes 1, 2, 3, MRVA and MRVB (Passports, Visas, national id cards and other travel documents)