Browswer Uk thanks for your help. Very much appreciated.

there are 'n' clients.

The reason why every client is asked to verify is to confirm that the file in the CDS looks the same(seen) through all the clients.

the reason why I'm not sure if threading would be ideal is because, the client programs are on different machine, and their process are initiated sequentially( in the order of their pinging) so threading would make sense in that case? pl correct me if I'm wrong.

my idea was to make a peer-to-peer cleint architecture with same problem, so to start small I assumed a server which is not connected to the CDS and just supervises the clients