The GLEIF also produces an official mapping file, linking LEI records to the corresponding OpenCorporates records for the same legal entities (and this provides a route from users of OpenCorporates records to BIC and ISIN identifiers, which are also mapped to the LEI). This relationship is underpinned by both organisations having a data model where one-legal-entity is represented by one and only one record; where both organisations have public benefit missions; and where both are committed to non-proprietary identifiers.