I am new to blockchain and ethereum. I created a private network with two nodes, I have couple of questions:
- After starting the miner it starts mining even if there is no transaction performed. So what is the miner mining and what is the significance of it?
- When I transfer some ether to another using the mist wallet it says it is pending 12 approvals, how we reach to this figure of 12 approvals, is it configurable.?