Blockchain, as a constantly evolving Peer-to-Peer (P2P) distributed ledger technology with characteristics, such as decentralization, security, interoperation, and trust establishment, can potentially lower the costs of the underpinning infrastructure and maintenance compared with conventional centralized systems. Consequently, the distributed structure of blockchain is naturally suitable for the Internet of Things (IoT), which can be used to build secure and trusted IoT. Despite the advances made in applying blockchain to IoT in the past few years, some research challenges remain to be addressed, including the poor scalability, heterogeneous IoT devices, and the impact of integration on network performance.

中文翻译：

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区块链物联网客座编辑特刊

区块链作为一种不断发展的点对点（P2P）分布式账本技术，具有去中心化、安全性、互操作性和信任建立等特点，与传统的中心化系统相比，可以潜在地降低基础设施和维护成本。因此，区块链的分布式结构自然适用于物联网（IoT），可用于构建安全可信的物联网。尽管过去几年在将区块链应用于物联网方面取得了进展，但仍有一些研究挑战有待解决，包括可扩展性差、物联网设备异构以及集成对网络性能的影响。