I know that Ethereum was forked 2 chains due to DAO hacking. so Ethereum Classic was borned at that time. 2 chains are distinguishable by different chain id.
I had a strange idea, a malicious miner can keep two chains(for example ETH, ETC). Think of this way, I have a two machine and one(A) is running on ETH network, another(B) is running on ETC. connection can be established between A and B if I want. A node can delivery the block to B node when it get a propagated block, also vice versa. the benefit which can be given by doing this is that I can mine two types(ETH,ETC) block to earn reward.
- Do you think this is illegal?
- Do you think this has practicality to earn reward by keeping two chains?
Sorry for my English.