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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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herad🎩💎🔵
@anya98
Blockchain is known as a safe and reliable system, but it should also be noted that its security depends on the correct implementation and use of the required technologies 47 $DEGEN
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