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Blockchain’s cryptographic security forms the backbone of its impenetrable fortress. At its core lies a complex web of cryptographic algorithms that ensure the integrity and confidentiality of data. Public-key cryptography, widely employed in Blockchain systems, utilizes pairs of cryptographic keys — public and private — to secure digital signatures and encrypt transactions. This cryptographic puzzle safeguards against unauthorized modifications, ensuring the immutability of data stored within the Blockchain. Through this robust cryptographic infrastructure, Blockchain creates a secure environment for conducting transactions and storing sensitive information.