Check Digit Definition
A redundant validation character appended to an identification code to automatically detect data transcription and formatting errors.
Related Guides & Tools
- Understanding the ISO 17442 Standard and LEI Code Structure — An anatomical breakdown of the 20-digit LEI format, detailing LOU prefixes, entity markers, and check digits.
- SIC ↔ NAICS Concordance Crosswalk — Search and map old SIC codes to modern formats.