Blockchain has the characteristics of Decentralization, tamper resistance, Consensus Mechanism, Timestamp, etc. It has been applied in many fields. Here are some common application scenarios:

1. Identity Authentication: Storing personal identity information on the Blockchain from birth, with data owned by individuals. All identity actions are required to be recorded, enabling effective identity authentication.

2. Food traceability: Record information about agricultural products or food in different links such as raw materials, planting, picking, logistics, and sales on the blockchain, which can solve the safety issues in the food supply chain, reduce audit costs, and improve information transparency and traceability.

3. Digital copyright trading: When creators create on the platform, they register the creation process on the Blockchain. After the creation is completed, they can price the product. Individuals can obtain the right to use or ownership of the copyright by smart contract payment, simplifying the process of copyright protection and improving the efficiency of rights confirmation.

4. Voting election: Using the tamper-resistant feature of Block chain to register the voting information on the chain can ensure the credibility and objectivity of the voting results, and the anonymity can also ensure that the voters' intentions are not interfered with.

5. Smart Contract: This is a pre-programmed program that, once the rules are determined by the two parties to the transaction, will automatically execute the transaction and cannot be tampered with or affected. It can reduce reliance on third-party intermediaries, improve transaction efficiency and security. For example, in e-commerce transactions, if smart contracts are used, compensation can be automatically executed according to established rules when problems occur with the goods, without the need for platform intervention and mediation.

6. Timestamp: Any action that occurs will be permanently recorded on the blockchain and timestamped, proving that something happened at a certain time, which is unchangeable and irreversible. This feature can be used to track previous actions and avoid backdoor operations.

7. Digital Assets: Blockchain technology can present property in a digital and tangible form with specific usage rights, making it convenient to carry and manage. It can also track transaction behavior, making asset conversion more convenient and enhancing asset security, such as protecting virtual assets like game accounts.

8. Information Sharing: Blockchains come with information sharing capabilities, enabling real-time information sharing through its P2P technology, utilizing tamper-proof and Consensus Mechanism to build a secure and reliable information sharing channel.

9. Logistics Chain: It can effectively improve the problems of multiple logistics links, lack of information transparency, counterfeit goods, etc., and realize the transparency and traceability of the supply chain.

10. Financial sector: can be used to achieve decentralized finance, smart contracts, digital currency, etc., improve the efficiency and transparency of financial transactions, and realize trust mechanisms such as peer-to-peer transactions and disintermediation.

11. Public service sector: Contributes to the Decentralization and transparency of public services, such as citizen identity authentication, digital copyright protection, healthcare information sharing, etc.

12. In the field of the Internet of Things: it can ensure the identity authentication, data security, and privacy protection of IoT devices, and achieve the Decentralization and interoperability of devices.