Digital Education with Blockchain Token Technology

Glossary

Term DefinitionsBlockchainA distributed database that uses cryptography to ensure data security and immutability.Hash algorithmAn algorithm that converts data of any length into a string of fixed length.Hash addressA unique identifier generated by a hash algorithm that identifies an account on a blockchain.TokenA digital asset that represents a specific value and can be traded on a blockchain.Smart contractA program stored on a blockchain that automatically executes predefined rules.EthereumAn open source blockchain platform that supports the issuance of smart contracts and tokens.NodeA computer connected to a blockchain network that is responsible for verifying and broadcasting transactions.Private keyA key used to access and manage blockchain accounts and must be kept secret.Public key is used in pairs with private key to verify the authenticity of transactions and messages.Elliptic curve cryptographyAn asymmetric encryption algorithm that uses mathematical operations on elliptic curves to encrypt and decrypt data.

Short answer questions

Briefly describe the working principle of the digital education record management method based on blockchain token technology.

Explain the role of hash algorithm in this method and give examples of its application.

Describe how hash addresses and management keys are generated by educational institutions and the relationship between them.

Explain how tokens are allocated to educational institutions and how the allocation process is recorded.

Describe the unified rules for students to obtain tokens and explain the role of the rule maker.

Explain how tokens are transferred from educational institutions to student accounts and the key information in the transfer process.

List two blockchain scanning tools and explain their use in this method.

Explain how blockchain data is used to generate digital education records for students and explain the content of the records.

Describe how to use authorization keys to verify the authenticity of digital education records.

Explain how student learning history records are generated and their potential value in the job search process.

Short answer questions

This method uses blockchain technology to securely record students' learning experiences and incentivize students to learn through tokens. Educational institutions issue tokens representing learning experiences to students, and these records will be permanently stored on the blockchain to ensure their authenticity and traceability.

Hash algorithms are used to generate unique hash addresses and immutable records. For example, it can convert student identity information into a unique student hash address and record each token transaction as immutable blockchain data.

The hash address of an educational institution is generated by hashing the institution information, and the management key is generated using the elliptic curve cryptography algorithm and paired with the hash address to manage the institution's account and authorize token transactions.

The system allocates a certain number of tokens to the institution's hash address based on the size and needs of the educational institution. The entire allocation process is automatically recorded on all nodes of the blockchain to ensure its transparency and openness.

After students complete a day's study or pass an exam, the educational institution will issue tokens to students according to pre-set unified rules. The rule makers are usually educational institutions, and they can be adjusted according to actual conditions.

The educational institution uses its management key to authorize the transfer of tokens from the institution's hash address to the student's hash address. The hash value, date, time, and number of tokens during the transfer process are recorded on the blockchain to ensure its traceability.

Etherscan and Web3js are both commonly used blockchain scanning tools. They can read data on the blockchain, such as obtaining the latest token transaction records, to generate students' digital education records.

By comparing the correspondence between the hash address of the educational institution and the hash address of the student, and analyzing the acquisition of tokens in different time periods, the student's learning records in different institutions can be generated to form a complete digital education record.

The authorization key is associated with the student's management key and can be used to verify the authenticity of the digital education record and prevent the record from being tampered with. Only those with the authorization key can access and verify the integrity of the record.

The student's learning history record consists of information such as the hash value, date, time, and quantity of each token transaction, which is processed by the hash algorithm to form a string. Students can authorize potential employers to view their learning history records as proof of their ability and experience.