Consensus - Thoery to Practice

Question

Multichain uses Mining Diversity for Mining. That's good as far as understanding and agreeing on who mines the next block is concerned. What I am trying to understand is what does a mining node do in order to add the next block to the blockchain.

I understand in Bitcoin world, the nodes race to solve the problem to figure out the nounce required to meet the required difficulty level. How does it work in Multichain?

I am looking at it more from creating a Use Case? What should be covered  under Consensus? Say for e.g. KYC Documents on Blockchain Use Case.

Answer 1

In a blockchain with permissioned mining you don't need proof-of-work like in bitcoin. Instead, the "miner" of each block just signs the block to prove its origin. There's some limited information about this here:

https://www.multichain.com/developers/mining-block-signatures/