IVOA Recommendation: VOSpace specification Version 1.15
  VOSpace is the IVOA interface to distributed storage. This version extends the existing VOSpace 1.0 (SOAP-based) specification to support containers, links between individual VOSpace instances, third party APIs, and a find mechanism. Note, however, that VOSpace-1.0 compatible clients will not work with this new version of the interface. 
Matthew Graham, Dave Morris, Guy Rixon
astro-ph.IM