1. A method comprising: identifying, by a client system, at least one server as being associated with a tract of data, the tract of data being one of a plurality of tracts of data comprising a byte sequence and the identifying includes looking up the at least one server in a locator table that distributes the tracts among a plurality of servers, the locator table distributing the tracts by associating servers with tracts based at least in part on translations to fixed lengths of tract identifiers; and providing, by the client system, a request associated with the tract to the at least one server.