as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
explain the concept of blockchain to a 5 year old.
user
blockchain is like a very big record that stores all kinds of information. it's like a long list of things that can't be changed, like things people buy or sell or who owes what money to who. that way everyone always knows what is true.
assistant