A reorganization, abbreviated as reorg, occurs when a block is deleted from the blockchain to make room for a longer chain.
Despite its potential, blockchain is beset by obstacles. For example, block conflict is now the most common type of blockchain flaw, which indicates that if two blocks are published nearly simultaneously, a fork in the blockchain can occur.
The current conflict resolution method is based on the Longest Chain Rule (LCR), i.e., if multiple blocks are present, treat the longest chain as valid. This means that each node follows the protocol requirement of only attempting to extend the most extended branch of which they are aware. Because transactions on the wrong side of the fork would be restructured into new blocks, this rule causes a few transactions on the wrong side of the fork to be delayed, leading to blockchain reorganization.
Chain reorganization can happen with busier blockchains such as Bitcoin and Ethereum, where nodes may generate a new block...
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