Pruning nodes are described in the [sourcecode](http://bitcoin.stackexchange.com/a/35987/5406) thusly: > `-prune=<n>`: Reduce storage requirements by pruning (deleting) old blocks. This mode is incompatible with `-txindex` and `-rescan`. I’ve watched that my node has been consistently uploading less than it has been downloading since I set it to run in pruning mode. * What services do pruning nodes still perform? * Do they upload blocks and transactions? * Can they service thin clients? * What can a pruning node **not** do, that a non-pruning node does?