Added anonymity, but not recommended due to loss of transaction data vulnerability:

- If the Bitcoin block can be fractionalized amongst active nodes (nodes gracefully exiting the network to allow for data passing) with plenty of backup data overlapping amongst the nodes - but no one node knows the full block chain, it will also increase anonymity.  But this may cause vulneribility in the system database in case of node failure - this route is not recommended.  If a majority of nodes in one geographic location holds the only copy of a particular section of the database, and that geographic area suffers a catastrophe, it might wipe out some/all Bitcoin wealth completely.