anchor.diff:  -type db_chunk() :: {intervals:interval(), ?DB:db_as_list()}.
   -type sync_struct() :: %TODO add merkleTree + art
       {   
  -        Interval    :: intervals:interval(), 
  -        SrcNode     :: comm:mypid(),
  -        KeyBF       :: ?REP_BLOOM:bloomFilter(),
  -        KeyVersBF   :: ?REP_BLOOM:bloomFilter()
  +        Interval :: intervals:interval(), 
  +        SrcNode  :: comm:mypid(),
  +        KeyBF    :: ?REP_BLOOM:bloomFilter(),
  +        VersBF   :: ?REP_BLOOM:bloomFilter()
       }. 
   -type sync_method() :: bloom | merkleTree | art.
   -type state() :: 
  
positive.code: 
  -export([start_link/1, init/1, on/2, check_config/0]).
  
  %-define(TRACE(X,Y), io:format(X,Y)).
  -define(TRACE(X,Y), ok).
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % constants
  
negative.code: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % Web Debug Message handling
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  on({web_debug_info, Requestor}, 
     {SyncMethod, _TriggerState} = State) ->
      KeyValueList =
  