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.
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explain what a blockchain is using simple and clear language.
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a blockchain is a digital ledger of records, secured using cryptography and managed via a peer-to-peer network of computers. it stores and records transaction data digitally without any need for a central authority or third-party verification. the data stored in a blockchain is immutable and its records are highly secure, meaning they cannot be tampered with or reversed.
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