Blockchain Transaction Processing: Study Guide

Blockchain Transaction Processing: Study Guide

Glossary

Term Definitions Blockchain Node A participant in a blockchain network that is responsible for validating and relaying transactions. Transaction Proposer A user who initiates a blockchain transaction. Transaction Recipient The intended recipient of a blockchain transaction. Transaction Request A transaction proposer sends to a blockchain node, containing information such as the transaction proposer, the transaction content, and the transaction recipient. Transaction Fee A fee required to process a blockchain transaction. Guarantor User A user whose transaction fee is guaranteed by the transaction recipient. Payment Account An account used to pay transaction fees, which can be a guarantee account, a transaction recipient account, or a transaction proposer account. Signature Information Information generated by the transaction recipient using its private key to sign the transaction content, indicating that the transaction recipient agrees to pay the relevant transaction fees. Guarantor Relationship A guarantee relationship between a transaction proposer and a transaction recipient, recorded in the blockchain platform or management device. Credit Limit The credit limit available to a guaranteed user. Used Credit Limit The credit limit used by a guaranteed user. Credit Balance The credit balance available to a guaranteed user, where Credit Balance = Credit Limit - Used Credit Limit. Credit Recovery Rate The credit limit restored after each block is passed. Block height The number of blocks that have passed since the last time the transaction recipient paid the transaction fee for the transaction proposer. Smart contracts are stored on the blockchain and are automatically executed when the preset conditions are met. Short answer questions

In traditional transaction processing systems, who is responsible for paying transaction fees?

In traditional transaction processing systems, only transaction proposers can pay transaction fees.

What are the advantages of the transaction processing scheme proposed by the present invention compared with traditional schemes?

The scheme proposed by the present invention allows the transaction recipient to pay transaction fees for the guarantee user, which reduces the burden on users and facilitates enterprises to manage multiple blockchain services.

What is a guarantee user?

The guarantee user is a user whose transaction fee is guaranteed by the transaction recipient.

After receiving a transaction request, how does the management device determine whether the transaction proposer is a guarantee user?

The management device can determine in two ways: 1. Check whether the transaction request contains the signature information of the transaction recipient. 2. Query the guarantor relationship stored in the blockchain platform or the management device.

How does the management device generate signature information in the transaction request?

The management device uses the private key of the transaction recipient to sign the transaction content and generate signature information.

How does the transaction processing node determine whether the transaction request is initiated by the guaranteed user?

The transaction processing node can determine this by checking whether the transaction request contains the signature information of the transaction recipient.

In the three-tier payment model, what is the order of payment of transaction fees?

In the three-tier payment model, transaction fees are paid in the following priority order: 1. Guarantee account, 2. Transaction recipient account, 3. Transaction proposer account.

If the transaction recipient does not have an associated guarantee account, how will the transaction fee be paid?

If the transaction recipient does not have an associated guarantee account, try to pay the fee from the transaction recipient account; if the transaction recipient account balance is insufficient, try to pay the fee from the transaction proposer account.

If the transaction content is to send a certain amount of cryptocurrency, what operations does the transaction processing node need to perform?

The transaction processing node needs to determine whether the balance of the transaction proposer account is sufficient to pay the transaction fee and the sending amount. If it is sufficient, deduct the corresponding amount from the transaction proposer account and transfer the sending amount to the transaction recipient account.

What types of cryptocurrencies are applicable to the transaction processing scheme proposed in the present invention?

The transaction processing scheme proposed in the present invention is applicable to single and multiple types of cryptocurrencies.

Essay question

Detailedly explain the advantages of the transaction processing scheme proposed in this invention compared with the traditional scheme, and give examples in combination with actual application scenarios.

Explain the role of the guarantor relationship in blockchain transaction processing, and explain how to use smart contracts to manage the guarantor relationship.

Describe the role of the credit limit mechanism in guaranteeing the payment of user transaction fees, and explain how to set and update the credit limit of the guarantee user.

Discuss the challenges that the transaction processing scheme proposed in this invention may encounter in practical applications, and propose corresponding solutions.

Analyze the impact of the transaction processing scheme proposed in this invention on the development of blockchain technology, and look forward to its future development trends.