Hi, I am trying to understand this technology a little better.
Many of us are mining Ethereum with various client software, for example Claymore. If changes are proposed to the Ethereum blockchain how is that all coordinated with the many machines that are participating on the network. Is a master password required, or backdoor into the system? What kind of software would be utilized to issue instructions to change the blockchain.
If Ethereum comes under an ASIC attack and a fork is proposed how is that actually implemented on a technical level?https://www.coindesk.com/no-action-vitalik-opposes-plan-disable-ethereum-asics/