Bitcoin Cash SV Blockchain Reorganization Draws Further Centralization Criticism



Reorgs occur when two miners solving a block at the same time cause a temporary fork in the network. The miner that solves the next block then dictates how the blockchain continues, as the block they mined on top of then becomes 'calonical' per Nakamoto consensus, because it has more work committed to it. Reorg itself is a situation when a node or a blockchain client need to disregard blocks they have previously considered as accepted.


When blockchains experience congestion, however, information about blocks may reach miners slower than usual, meaning that miners keep mining blocks that are now obsolete, and if they are successful, one of the blocks will eventually need to be orphaned.

In this aforementioned event, the BCHSV reorg came about due to the mining arm of cryptocurrency news publication Coingeek, a party in favor of BCHSV, orphaning its own blocks. It is not clear whether it was intentional or due to an error, but the event demonstrated that one pool possesses enough hashing power to revert blocks and transactions on BCH SV network.






