Internet of Things devices use blockchain technology to achieve secure data sharing and trusted interactions between devices, often requiring the use of specific cryptocurrencies for transactions and incentives. The high - speed and low - latency characteristics of 5G technology provide a broader development space for blockchain applications, such as real - time payments and the rapid execution of smart contracts. As these new application scenarios expand, the demand for cryptocurrencies increases accordingly. For example, in an Internet of Things - and blockchain - based supply chain management system, enterprises need to use cryptocurrencies to pay for logistics costs and verify the authenticity of goods. As the number of participating