⚙️Introduction

Consensus Algorithm

Consensus Algorithm

Trusted institutions such as central banks and public offices authenticate various types of value. However, if these entities cannot recognize such value, or in scenarios where such recognition fails, there is a risk of undermining the value of both tangible and intangible assets. Moving beyond these centralized and authoritative methods, a crucial aspect of current blockchain technology is the consensus algorithm, which democratically acknowledges value without a specific centralized authority, instead relying on the collective recognition of many individuals

DRPoS (Delegated Random Proof of Stake)

The block creation method in Bitcoin or Ethereum follows the first-generation PoW (Proof of Work) approach. Blocks are generated by finding a hash value of the block header, created by changing the nonce value through hash operations via GPU, that is smaller than the given bits value. This method requires high computational power equipment and has the drawback of high costs compared to the mining output.

To reduce these costs, several other Blockchain Mainnets like Quantum and NEO have devised a second-generation block creation method, PoS (Proof of Stake), where blocks are generated randomly and the probability of block generation gives priority to nodes with higher stakes. However, granting block generation priority to those with more stakes leads to the centralization of capital, distorting the essence of decentralization and posing a risk of a 51% attack.

To address this issue, ARICHAIN has introduced the DRPoS (Delegated Random Proof of Stake) method, where 17 elected master Nodes (BPs) and 6 randomly selected Block Observers (BOs) together create blocks in random order to maintain the integrity of the entire blockchain.

Compared to the existing DPoS, which consists only of BPs, DRPoS strengthens blockchain integrity through a dual verification structure of BPs and BOs. BOs are randomly selected to participate in block creation alongside BPs, increasing the network's resistance to collusion or malicious attacks. This random selection of BOs prevents the concentration of influence in the block creation process and enhances the level of decentralization of the network.

Due to these advantages, Arichain's DRPoS consensus algorithm compensates for the limitations of the existing DPoS consensus algorithm, enabling the implementation of a more secure and decentralized blockchain network.

Figure 2 and Figure 3 depict the improved block generation structure according to the DRPoS algorithm. Referring to these, the present invention involves selecting a random number of nodes (BO) among the general nodes and having these nodes (BO) collaborate with the master nodes (BP) to generate blocks in random order.