1. Financial field: Blockchain can be used in payment, lending, securities trading and other financial fields to improve transaction efficiency and security.
2. Internet of Things: Blockchain can be used for trust establishment and data exchange between IOT devices.
3. Copyright protection: Blockchain can be used for copyright protection of digital content to ensure that the content is not tampered with or stolen.
4. Medical health: Blockchain can be used for data management and privacy protection in the field of medical health.
5. Public services: Blockchain can be used for public services, such as election voting and public record management.