The NSS portion of the name is strictly limited to the digits 0-9 and the '. No other characters are permitted. By reference this URN namespace inherents those rules. By reference this URN namespace inherents those rules. There are multiple entities that assign new OIDs to the general public.
Lexical equivalence is achieved by exact string match.
There are no additional characters reserved. Security Considerations None not already inherent to using unverifiable OIDs. The author would like to thank Harald Alvestrand for the use of his OID database as a source for examples and references. All Rights Reserved. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.