1. A method comprising: receiving a first data stream for constructing a first backup image at a first backup level for a data set; generating a first plurality of data objects from the first data stream, wherein generating the first plurality of data objects comprises, indicating, in each of the names of the first plurality of objects, the first backup level and first sequencing information for the first plurality of objects, wherein the first sequencing information is in accordance with serialization of the first data stream, and storing the first plurality of objects in a data container hosted in one or more resource of a cloud service provider, wherein an identifier of the data container is based, at least in part, on an identifier of the data set.