According to news on December 29, Sophon, a modular blockchain based on ZKsync, announced that it has completed the mining migration and started the second phase. Mainnet mining is now open. According to previous news, Sophon announced the mining migration timeline: the L1 mining withdrawal window will be closed at 7:59 on December 27; all remaining assets will automatically cross-chain to the Sophon main network on December 27, and the first phase of SP point accumulation will end; 12 Mainnet mining will be opened on March 28th.