*2.4.1 Blockchain technology for educational sector*

After some research, it is clear to say the best way to explain how Blockchain could be implemented in the educational sector is to divide the interests, the same as it is explained in Ref. [12].

a. Enhancing security and efficiency for educational institutions, corporations, and students

Blockchain technology has the potential to protect students' data by ensuring their identification, privacy, and security. As previously stated, Blockchain ensures integrity through its hash chain, which provides security and authenticity. Students, for example, cannot change past educational certifications stored on the Blockchain. Furthermore, because Blockchain does not store data, but rather a hash of it, privacy is assured. Before being stored on the Blockchain, the data might be encrypted if desired.

As it is mentioned in Ref. [13], a variety of Blockchain-powered efficiency applications, including record-keeping applications, such as digital credentials and intellectual properties, simplifying diploma verification, and fast and reliable student payments. Not only do these technologies save money and time for educational institutions, but they also save time and money for companies and individual students.

b. Integrating trust and transparency

Employers may be assured that job applicants have the required abilities to succeed in the industry, since Blockchain guarantees that students cannot falsify their grades, degrees, or certifications. Blockchain becomes a trust anchor of one truth for credentialsk as it is said in research "Tapscott and Kaplan, 2019."

Moreover, this anchor gives job searchers and companies the option to make better matches. In general, because distributed ledger technologies enable learning and protect academic records, they improve interactions between "universities, companies, companies, and their relationships to society" by integrating trust and transparency into skill transactions and sharing procedures.

c. Learners' empowerment (self-sovereignty)

The data (credentials, skills taught, etc.) linked with a student's identification is owned by the student, not by a central administration like a university. Students can keep their lifetime learning data (both inside and outside of the classroom), fully own it, and decide who has access to it.

Furthermore, even when students benefit from Blockchain "wallets," where they can store and share all of their learning data with various parties (students being complete owners of their identity-related data), they still benefit from the support of their professors, ensuring that they are not alone in their learning journeys.

Moreover, Blockchain can facilitate the most important element for educational institutes, such as

