Curated SDT Library
Explore our open library of standardized Semantic Data Types. Search and filter by category to locate the specification you need.
Canadian Postal Code
A six-character alphanumeric string that forms part of a postal address in Canada. It is formatted as A1A 1A1,...
Canadian Social Insurance Number
A 9-digit number issued to individuals by the Canadian government to administer various government programs....
International Bank Account Number
An internationally agreed system of identifying bank accounts across national borders, standardized under ISO...
International Standard Book Number (ISBN-13)
A 13-digit unique numeric commercial book identifier, standardized under ISO 2108. Validated using a weighted...
ISO 3166-1 Alpha-2 Country Code
Two-letter country codes defined in ISO 3166-1, representing countries, dependent territories, and special...
ORCID iD
A unique persistent identifier for academic and other scholarly authors, conforming to ISO 27729. Validated...
US Social Security Number
A 9-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents to track...
US ZIP Code
A ZIP Code is a postal code used by the United States Postal Service (USPS). It can be either the basic...