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In your tutorial this week, you worked on a financial distributed ledger. Suppose that we want to have a distributed ledger for students' marks. The distributed ledger should include data such as Name, Surname, ID, Unit Code, etc. Suggest an appropriate design for the distributed ledger including a hash function and proof of work. Briefly explain how your suggested design is immutable. Tip: you can create a table in an Excel or a Word file and attach to your response