Bundle
dsh-checkdigit
Check-digit mathematics toolbox for DeepSeek Harness (dsh): generate, validate and detect check digits for Luhn, Verhoeff, Damm, ISBN-10/13, EAN-8/13, UPC-A, ISIN, CUSIP, IBAN, CAS Registry Number and ABA routing number, plus ISBN-10 <-> ISBN-13 conversion — zero runtime dependencies
TYEclipse2