From the perspective of technology, a consensus mechanism is one of the most important features of blockchain. Consensus refers to the recognition of block data. Only when more than half of the P2P networks validate that block data is true and reliable can they reach consensus.

The core issue of the consensus algorithm is to solve the problems of security, performance, and scalability. The advantages and disadvantages of a consensus mechanism are directly related to the performance and scalability of the main chain. Generally speaking, blockchain consensus algorithms can be divided into three categories: POW, POS, and Byzantine fault tolerance (BA) algorithm.

Fundamentally speaking, the consensus mechanism has no absolute advantages and disadvantages. They are all constantly improving and optimizing. However, there are many difficulties and pain points in the consensus mechanism of some public chains. It is necessary to design and use a more appropriate consensus mechanism based on the requirements of application scenarios to improve efficiency.

In the current market environment, the H + POR consensus mechanism developed by the Hubble Chain developer team provides an effective solution to achieve a technological breakthrough with a hybrid mechanism based on POR. H + POR is upgraded upon the earlier POR algorithm and infused with Hubble Chain patented technologies.

The traditional POR consensus model depends on the reputation of participants to maintain network security. Participants must have reputation importance enough. If they attempt to conduct fraudulent acts to cheat on the system, they will suffer from financial and reputational losses. Once the reputation is verified, it can vote as an authoritative node to enter the network.

H+POR is an upgraded hybrid mechanism built on the strength of POR (Proof of Reputation). It provides a mathematical model for reputation value defined from the data weighting method which takes into account all factors in the Hubble Chain ecosystem, including community, time, and contribution activeness.  H+POR represents a new mechanism to build a reputation system.

Four optimized core technologies were integrated into the design of H+POR consensus model, namely Hub-C (Hubble Chain Credibility), SCE (Security Consensus Engine), HILA (Hubble Chain Instant Ledger Access) and Sharding.

Hub-C establishes the credibility and reputation system of the blockchain world. Through the interaction between transaction data structure and social graph, it is used to select network integrity nodes and effectively resist the centralization. At the same time, HILA technology is developed to improve the speed of blockchain and reduce the time of finality determination.

Sharding technology is applied to improve throughput. Through the multi-node cooperative data sharding technology, the consensus engine is separated from the state details of a specific application, and the details of the application are abstracted to the interface to ensure the fast, safe and stable on-chain data migration.

At present, behind the continuous technological innovation of consensus mechanism, there are many technical bottlenecks such as scalability, security, and effective decentralized facing the public chain.

Hubble chain, with strong technical development capability, will take H + POR as the consensus basis, and provide new solutions to drive the innovation of global blockchain system using its core patented technologies.

Website: https://www.hbchain.io/#/en