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 a data object “B” for storage; generating a DSN source name for the data object “B”; when the data object “B” is substantially identical to a previously stored data object “A”, generating an object linking file that links a DSN address of the previously stored data object “A” to the data object “B”, wherein the previously stored data object “A” has an associated DSN source name that differs from the DSN source name for the data object “B”; 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 memory of the DSN.