Acceptance of New Blocks

New blocks acceptance

As outlined in this section, every miner immediately accepts a new block once it was propagated by another miner. This acceptance of new blocks is based on the incentive system of the Nakamoto consensus, which ensures a reward for the miner who successfully solves the Proof-of-Work. We show simplified proof of why any node should adopt the new block instead of continuing to work on its own candidate block.

Suppose that the reward for a new block is given by $R$. Let $H$ be the total hashrate of the entire network, $p H$ be the hashrate of the honest network and $q H$ be the hashrate of Alice, where $p+q=1$ and $q \ll p$. We assume that an honest miner has broadcasted a newly mined block $B_{n}$ to the network, as shown in Figure 1, that’s accepted by every honest node.

Figure 1