Blockchain is an accounting system for distributed storage of information. Its biggest feature is that it can establish trust relationships without relying on the trust endorsement of the central platform in a network environment without a trust foundation. Its practical application begins with Bitcoin as a virtual currency. However, the application of blockchain technology is not limited to virtual currencies. At present, in the fields of financial supervision, data sharing, connected cars, etc. , in Internet finance, banking, insurance, supply chain finance, clearing and settlement centers, etc. Blockchain technology has a certain degree of application. If at this time only the blockchain is equated with virtual currency and used for hype, it is either biased in understanding or intentionally distorted for hype. The text is intended to emphasize:. ['Blockchain helps build a social credit management system.', 'Blockchain technology has been widely used in the market.', 'It is wrong to equate blockchain technology with virtual currency.', 'The potential value of blockchain technology needs to be further explored.']