How do blocks play a crucial role in the transaction validation process of cryptocurrencies?

1 answers

• Ashan KalharaJul 29, 2022 · 4 years ago
  Blocks are like the building blocks of the transaction validation process in cryptocurrencies. They contain a group of transactions that are bundled together and added to the blockchain. Each block has a unique identifier called a hash, which is generated using cryptographic algorithms. This hash serves as a digital fingerprint for the block, ensuring its integrity and preventing any modifications. The blocks are linked together in a chain, with each block containing the hash of the previous block. This creates a tamper-proof record of all transactions, as any changes to a block would require recalculating the hash of that block and all subsequent blocks. Miners play a crucial role in the transaction validation process. They compete to solve complex mathematical puzzles, and the first miner to solve the puzzle gets to add a new block to the blockchain. This process not only validates the transactions but also secures the network against attacks. Overall, blocks are essential for maintaining the security, integrity, and decentralization of the transaction validation process in cryptocurrencies.
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