I ran 2.9 million transcription errors through the Chinese USCI and US VIN check-digit algorithms. One catches 100% of typos; the other misses 7.5%.
USCI vs VIN check digit: how much a code protects you Skip to main content Currawong Evidence-first China sourcing The numbers Why they differ Method Citing this Home / Research / Check-digit protection study Measurement record Fixed seed, reproducible Two identifiers guard your deal with one character each. I measured how well. Two self-checking numbers appear often in China sourcing: the 18-character company code and the 17-character VIN, including on imported food trailers . Each ends in a character computed from the rest. I ran 2.9 million deliberate errors through both algorithms to measu
I ran 2.9 million transcription errors through the Chinese USCI and US VIN check-digit algorithms. One catches 100% of typos; the other misses 7.5%.
USCI vs VIN check digit: how much a code protects you Skip to main content Currawong Evidence-first China sourcing The numbers Why they differ Method Citing this Home / Research / Check-digit protection study Measurement record Fixed seed, reproducible Two identifiers guard your deal with one character each. I measured how well. Two self-checking numbers appear often in China sourcing: the 18-character company code and the 17-character VIN, including on imported food trailers . Each ends in a character computed from the rest. I ran 2.9 million deliberate errors through both algorithms to measu
