1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: receiving data for storage; generating a DSN source name for the data; determining whether substantially identical data to the data has been previously stored in memory of the DSN; when the substantially identical data has been previously stored in the memory of the DSN, generating an object linking file that links the data to the substantially identical data; dispersed storage error encoding the object linking file to produce a set of encoded link file slices; and outputting the set of encoded link file slices for storage in the memory of the DSN.