In the digital world, systems are usually distributed, where health data are fragmented across multiple healthcare providers’ data may be accidentally corrupted or intentionally tampered. A mechanism is important to verify the integrity of the content in the network to ensure the security. The main objective of this paper is to propose a Modified Merkle Tree (MMT) data structure for data storage and data authentication. In this paper, a new Modified Merkle Tree data structure that can ensure storage security with integrity management is proposed. The Merkle Tree data structure, utilized in Blockchain technology is modified in this work for the purpose of designing a new three-stage Modified Merkle Tree based on hashed transactions. The objective of the proposed hashed transaction is to verify the authenticity and integrity of the content. The use of the Modified Merkle Tree data structure is highlighted in designing a system that takes care of Data Authentication, Consistency Verification and Data Synchronization. The effectiveness of the proposed system has been experimented in the healthcare scenario and proved to store and verify the content integrity. The quantitative metrics of the proposed system have been evaluated and compared with the binary Merkle Tree data structure.

在数字世界中，系统通常是分布式的，其中健康数据分散在多个医疗服务提供者的数据中，可能会意外损坏或有意篡改。一种机制对于验证网络中内容的完整性以确保安全性很重要。本文的主要目的是提出一种用于数据存储和数据认证的改进的Merkle树（MMT）数据结构。本文提出了一种新的可通过完整性管理确保存储安全性的改进Merkle Tree数据结构。在这项工作中，对区块链技术中使用的Merkle Tree数据结构进行了修改，目的是基于散列事务设计一个新的三阶段修改过的Merkle Tree。提出的哈希交易的目的是验证内容的真实性和完整性。在设计负责数据身份验证，一致性验证和数据同步的系统时，着重强调了修改后的Merkle树数据结构的使用。提出的系统的有效性已经在医疗保健场景中进行了实验，并被证明可以存储和验证内容的完整性。已评估了拟议系统的定量指标，并将其与二进制Merkle Tree数据结构进行了比较。