anchor.diff:  
   %% @doc Sends a commit request to a Node involved in a tx identified by TxId
   commit(ListofNodes, TxId, CommitTime) ->
  -    lager:info("Commit issued for txid: ~p", [TxId]),
       riak_core_vnode_master:command(ListofNodes,
                                      {commit, TxId, CommitTime},
                                      {fsm, undefined, self()},
  
positive.code: 
  %% @doc Sends an update request to the Node that is responsible for the Key
  update_data_item(Node, TxId, Key, Type, Op) ->
      lager:info("Update issued for key: ~p txid: ~p", [Key, TxId]),
      try
          riak_core_vnode_master:sync_command(Node,
                                              {update_data_item, TxId, Key, Type, Op},
  
negative.code: 
  %% @doc Sends a prepare request to a Node involved in a tx identified by TxId
  prepare(ListofNodes, TxId) ->
      riak_core_vnode_master:command(ListofNodes,
                                     {prepare, TxId},
                                     {fsm, undefined, self()},
  