基于监督者组的区块链账本修正方案

区块链账本中存在违规数据、误操作上链数据等问题，相关学者开展了可修正账本技术研究。针对传统修正方案中修改效率低、恶意节点作乱影响安全性等问题，提出了一种基于监督者组的区块链账本修正方案来改进传统方案。通过基于改进PageRank的区块链节点信用排序算法筛选出监督组成员节点，进而在可信前提下提升了账本修正流程的效率。设计了一种改进随机选择修正者算法并使用可验证随机函数构建节点验证追责机制，保障了账本数据修正流程的可追溯性和安全性。通过分析和仿真实验，该方案具有较高的安全性，并在区块信息修正效率和资源利用率方面优于传统方案。

Blockchain ledger amendment scheme based on supervisor group

Scholars have conducted research on amendable ledger technology in response to the problems such as irregular data and misuse of uploaded data in the blockchain ledger. This paper proposed a blockchain ledger amendment scheme based on supervisor groups to improve the traditional scheme. The scheme addressed the problems of low modification efficiency and malicious nodes messing up security in traditional correction schemes. The scheme filtered out the supervisor group member nodes through an improved PageRank-based blockchain node credit ranking algorithm, which in turn to improve the efficiency of the ledger revision process under trustworthy premises. The scheme designed an improved random selection of reviser algorithm and the use of verifiable random functions to construct a node verification recourse mechanism. The mechanism ensures the traceability and security of the ledger data revision process. The analysis and simulation results show that the scheme has high security and outperforms traditional methods in terms of processing efficiency and resource utilisation.