Bitcoin's mining concentration just showed up in a rare 2-block reorg
A 2-block reorg at height 941,881 saw Foundry's chain overwrite blocks from AntPool and ViaBTC, coming days after mining difficulty dropped nearly 8%.

Source: www.coindesk.com
A 2-block reorg at height 941,881 saw Foundry's chain overwrite blocks from AntPool and ViaBTC, coming days after mining difficulty dropped nearly 8%.