distibuted storage system

client experience
  * client keeps a group_key:uuid:access_key for any piece of storage
  * client has relation to some number of groups (usualy 1)
  * uuid:access_key minimum to retireve (data is moved from groupA to groupB, still retrievable)
  * new client connects to marketplace for IPaddrs of groups, live market of rates

storage operators:
  * any number of nodes. 
  * uniq node ID (also reports group key)
  * group ID key (could be one person)
  * any amount of storage

reputation
  * proof of storage (audits)

optional smart contract
  * accept payment, hand out service tokens
  * payment nodes