What is Block Finality?

Block finality is the point where a block of transactions becomes permanent and unchangeable on the blockchain. This is a fundamental aspect of transaction security, as it prevents users from altering or reversing their transactions, ensuring trust in the decentralized system.

The Importance of Finality

Blockchain experts like Vitalik Buterin emphasize the importance of speed and finality, as improvements in these areas can significantly enhance the overall integrity and efficiency of the blockchain network. Discussions around the latest innovations and real-world use cases for block finality are prevalent in the crypto community.

Securing the Network

Block finality is achieved through the consensus mechanism used by the blockchain, such as Proof of Work (PoW) or Proof of Stake (PoS). For example, Bitcoin's PoW makes it nearly impossible to reverse a confirmed transaction, while Ethereum 2.0's PoS aims to improve finality speed and security. Finality is the backbone of blockchain security, ensuring the immutability of transactions once confirmed.

Source: https://coinpaper.com/5374/what-is-block-finality-in-crypto-transaction-security

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