Polkadot adopts the NPoS consensus mechanism, that is, the "nominated equity proof mechanism". Simply put, all the holders of the project pass are the nominators of the Polka Ecology, and they have the right to nominate a certain node as a validator. The validator needs to pledge a certain amount of project tokens. Once successfully nominated as an active validator, it has the right to participate in the network block production. Besides, there is another feature at the consensus level that all shard networks share security, that is, the blockchain of the shard network shares the set of validators.

BitCherry using original aBFT + PoUc consensus mechanism, namely "user value of proof", and NPoS of different ways, all users can participate PoUc consensus algorithm according to the relationship map algorithm automatically selects the neighbor node and non-contiguous node, and concerning the weight Perform virtual voting, and the selected node will receive an accounting reward.

In simple terms, the BitCherry consensus algorithm is based on an asynchronous Byzantine fault-tolerant algorithm (aBFT), so any node that satisfies the condition (based on the unique value of Bit-U prefers the neighbor node) can participate in the process of the whole network PoUc consensus And almost all important nodes will also participate in the PoUc consensus.