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The hash war began on November 15, with a hashrate spread, although both chains could stabilize later. Bitcoin ABC has reached several peaks of hashrate, although Bitcoin SV has also surpassed at various times, as can be seen in the graph below: GRAPHIC Coindance
The estimated operational costs were high, so that the network bifurcation not only reduced the strength of the protocol, but also generated losses on both sides who are debating about the true "vision" of Satoshi Nakamoto, creator of Bitcoin (BTC).
Given the hostilities of Bitcoin SV, the Bitcoin ABC developers included some modifications to introduce checkpoints to every 10 blocks created in the chain in order to check the status of transactions and the size of their blocks.
The goal is to prevent block reordering attacks (reorgs), after the constant threats that the BCH network received after the bifurcation. However, and also according to BitMEX, while reducing the risk of attackers rewriting the chain, introduces a new attack vector that malicious miners can exploit.
In this case, the attacker could extract a hidden parallel sequence from that point. When entering your chain after the tenth block, some miners from the main network of the BCH could first undermine the malicious block, while others would undermine the honest block, which would make the malicious chain valid since it is the longest.
Although currently the price of both currencies is rising, it should be remembered that before the fork, each BCH had a price of $ 422 while it is now located at 210 and BCHSV at $ 119.
Featured image by Helder Almeida / stock.adobe.com
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