Blockchain transactions provided by validator nodes

Glossary

Term DefinitionsValidator NodeA special type of blockchain node that verifies transactions and adds them to the memory pool, but does not participate in block mining. Mining NodeA blockchain node that collects unconfirmed transactions, packages them into blocks, and performs proof of work to add blocks to the blockchain. Memory PoolA temporary database that stores unconfirmed transactions, waiting to be packaged into blocks. TokenA digital asset that represents value in a blockchain network and can be used to pay transaction fees or as a reward. Deposit TransactionA node participating in mining deposits a certain number of tokens into a specified address as a deposit to participate in mining. Claim TransactionWhen a mining node successfully mines a block, this transaction returns the node's deposit and allocates a portion of the block reward. Refund TransactionIf other nodes have already mined a block before the mining node successfully mines the block, this transaction will return the deposit to the mining node after deducting a certain fee. Modified TokenThe token returned to the mining node in the return transaction, which may be less than the original deposit. Adjusted TokenThe token assigned to the validator node in the return transaction as a reward for its services and resources. Secret ValueA random value generated by the mining node to unlock the request transaction. Only the node that successfully mines the block can obtain this value.

Short Answer Question

What role does the validator node play in the blockchain network?

A validator node is a special node in the blockchain network that is responsible for verifying transactions and adding them to the memory pool. Unlike mining nodes, validator nodes do not participate in block mining, but focus on quickly verifying and propagating transactions to improve the efficiency of the blockchain network.

Why do we need validator nodes?

The introduction of validator nodes is to solve the problem of mining nodes in traditional blockchain networks bearing too heavy a burden. By separating the responsibilities of transaction verification and propagation, mining nodes can focus on mining, thereby improving the throughput and efficiency of the blockchain network.

What is a memory pool and how does it work in a validator-based blockchain network?

A memory pool is a temporary database that stores unconfirmed transactions. In a validator-based network, the validator node is responsible for maintaining the memory pool and providing verified transactions to mining nodes for them to be packaged into blocks.

What do mining nodes need to provide to the validator node?

Mining nodes need to provide a certain number of tokens as a deposit to the validator node, as well as generate a secret value for unlocking the requested transaction.

What happens if a mining node successfully mines a block?

If a mining node successfully mines a block, the validator node returns the node's deposit and allocates a portion of the block reward to the node.

What happens if a mining node does not successfully mine a block?

If a mining node does not successfully mine a block, the validator node returns the deposit to the node after deducting a certain fee.

What are modification tokens and adjustment tokens?

Modification tokens refer to tokens returned to nodes that failed to mine a block in a return transaction, and their value may be less than the original deposit. Adjustment tokens refer to tokens assigned to validator nodes in a return transaction as a reward for their services and resources.

What role does the secret value play in a blockchain network based on validator nodes?

The secret value is generated by nodes participating in mining and is used to unlock request transactions. Only nodes that successfully mine a block can obtain this value, thereby ensuring that only nodes that successfully mine a block can obtain deposit returns and block rewards.

What are the advantages of a blockchain network based on validator nodes over a traditional blockchain network?

A blockchain network based on validator nodes can increase transaction processing speed and network throughput because it separates transaction verification and block mining, allowing mining nodes to focus more on mining.

What challenges does a blockchain network based on validator nodes still exist?

A blockchain network based on validator nodes needs to solve problems such as how to ensure the reliability and security of validator nodes and how to prevent collusion between validator nodes and mining nodes.

Essay questions

Compare and contrast the advantages and disadvantages of blockchain networks based on validator nodes and traditional blockchain networks in detail, and discuss their applicable scenarios.

Explain how blockchain networks based on validator nodes can improve transaction processing speed and throughput, and analyze their impact on different types of transactions.

Discuss how to ensure the reliability and security of validator nodes to maintain the stable operation of blockchain networks based on validator nodes.

Analyze the security risks that blockchain networks based on validator nodes may face, such as collusion between validator nodes and mining nodes, and propose corresponding preventive measures.

Discuss the future development trend of blockchain networks based on validator nodes, and look forward to their application prospects in different fields.