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- Properties on hash URI resources can be added and deleted by updating the base resource (POSTing/PUTting RDF, SPARQL Update).
- References to hash URI resources are treated the same as references to base resources: they can only be made to existing resources, and they are automatically removed when the resource is deleted.
- When a resource is updated to include properties on hash URI resources, they are automatically created.
- The only way to delete a hash URI resource is to delete its base resource – though there is a proposal to address this by automatically deleting them if they have no properties and/or inbound references.
Alternate implementation - as Property/Properties
An alternate implementation would be to store hash URI fragment properties in a JCR property. So the properties about all hash URI fragments would be stored as serialized RDF in the value of a property 
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