http://www.rfc-editor.org/rfc/rfc7483.txt
RFC 7483: JSON Responses for the Registration Data Access Protocol (RDAP), A. Newton, S. Hollenbeck2015-03-01T23:00:00-00:00This document describes JSON data structures representing registration information maintained by Regional Internet Registries (RIRs) and Domain Name Registries (DNRs). These data structures are used to form Registration Data Access Protocol (RDAP) query responses.