Consensus mechanism method combining dpos between blockchain node groups and pow within node groups

Abstract

The invention discloses a consensus mechanism method combining DPOS between blockchain node groups and POW within a node group, including the following steps: (a) Generate node groups by voting, divide each node group, and complete a round-robin cycle , the system will automatically carry out the node community again, and re-divide the new node community; (b) the POW mechanism is implemented inside the rotated node community, and each node in the node community competes for a chance to generate a Token block, and other nodes will Verify the validity of the POW calculation results, and finally the node with POW validity will generate the Token block node. (c) When there is a fork in the TOKEN chain, and two different blocks have the same parent block due to network delay, the method of recognizing a longer chain is adopted to solve the fork problem. The invention can handle the data packaging verification and chaining process of a large number of parallel blockchains, utilizes the computing power of each node in the community, and is more decentralized than the simple DPOS.

Description

technical field [0001] The invention relates to the field of blockchain, in particular to a consensus mechanism method for combining DPOS between blockchain node groups and POW within a node group. Background technique [0002] Smart contracts are an important feature of the blockchain, which can make the blockchain more intelligent. At present, there are four main types of consensus mechanisms in blockchain: Proof Of Work (POW) mechanism, Proof of Stake (POS) mechanism, Delegate Proof of Stake (DPOS) mechanism and verification pool ( Pool) mechanism. Among them, the consensus technology of smart contracts based on the POW mechanism is relatively mature. The consensus process is as follows: after the node triggering the transaction broadcasts the transaction request to the blockchain network, all nodes in the network compete to obtain the right to create a new block, and the node that succeeds in the competition executes the The smart contract broadcasts the generated new ...

AI Technical Summary

Problems solved by technology

[0003] However, several existing single consensus mechanisms have their own problems or defects

[0004] The smart contract consensus method based on the POW mechanism is completely decentralized, and nodes are free to enter and exit, but all nodes in the blockchain network need to verify the correctness of the new block, which occupies most of the computing power of the entire network, thus reducing the cost of the entire network. Calculate ability

The implementation of DPOS is relatively complex, prone to security vulnerabilities, and the network traffic pressure is high

There are many difficulties in dealing with bad nodes

Community elections cannot effectively prevent the emergence of some sabotage nodes in a timely manner, causing potential security risks to the network

[0005] For the application of blockchain in a certain field, and to ensure the requirements of rationality, security, and efficiency, it is difficult to meet the requirements with only one consensus mechanism

Images