Updating the POS consensus mechanism

To ensure the fairness of the election process.

In order to ensure the fairness of candidate nodes, we will have an upgrade at 16:00, 2^nd April 2022 (UTC+8) for the new election mechanism of Ultron nodes. The original pre-candidate node mechanism remains the same. The house of the candidate node will become 2 instead of the original 4. The number of Ultron nodes remains at 21. 10 blocks are needed to be p in each block rotation by an Ultron node.

Definition of nodes:

Types of Nodes	Explanation
Pre-Candidate Nodes (PCN)	Every node that has pledged 20 UTGs by default as PCN.
Candidate Nodes (CN)	The House of candidate node 1 allows Genesis Nodes to enter. The House of candidate node 2 allows qualified PCN to enter. (Penalty points must be less than 30）
Ultron Nodes (UN)	Each UN is needed to produce 10 blocks in one block rotation.

PoS House of Candidate Node Division：

	House of Candidate Node 1	House of Candidate Node 2
Seats	Unlimited	Unlimited
Node quota	9	12
Limitation	Block produce right will be canceled if the calculated value of the Node is below the standard.	Block produce right will be canceled if the calculated value of the Node is below the standard.
Explanation	Genesis nodes will always occupy 9 node quotas	All CN with a pledge of 20UTG and penalty points of less than 30.

Conclusion:

Under the new rules of PoS consensus:

l The more UTG assets held by a node, the higher the probability of being elected as an Ultron Node to produce more blocks and get more PoS rewards.

l If the UTG assets held by a node are below the minimum calculated value on the chain, then there is no chance of being elected as Ultron Node.

l The requirement for entering the house of the candidate node is to ensure the stable operation of the block-producing node and remain a penalty point below 30.

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