Design and early experience with promoting user-created data in CMS

The Computing Model of the CMS experiment does not address transfering user-created data between different Grid sites. Due to the limited resources of a single site, distribution of individual user-created datasets between sites is crucial to ensure accessibility. In contrast to official datasets, there are no special requirements for user datasets (e.g. concerning data quality). The StoreResults service provides a mechanism to elevate user-created datasets to central bookkeeping ensuring the data quality is the same as an official dataset. This is a prerequisite for further distribution within the CMS dataset infrastructure.