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hellboy 🎩 🔵
@hellboys.eth
Is blockchain secure? Once a block is added to the end of the blockchain, it is very difficult to go back and change the content of the block. Because each block contains its own hash and the hash of the block before it. Hash codes are created by a mathematical function (hash function).
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Angelina🎭
@angelina7
Overall, the combination of cryptographic hashing and decentralization makes blockchain a highly secure technology for recording and verifying transactions.
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