tory shall assign and maintain persistent identifiers of the AIP and 
its components so as to be unique within the context of the repository. 
4.2.4.1.3 Documentation shall describe any processes used for changes to such 
identifiers. 
4.2.4.1.4 The repository shall be able to provide a complete list of all such identifiers 
and do spot checks for duplications. 
4.2.4.1.5 The system of identifiers shall be adequate to fit the repository’s current and 
foreseeable future requirements such as numbers of objec