On November 29th, Super Brain Space held an offline event in Hangzhou with the theme of "Blockchain Hard Core Technology Demystification-Zero Knowledge Proof and Cross-chain Deep Interpretation". Su Yu, Director of Super Brain Chain Technology, took Super Brain Chain as an example, and introduced how to expand the resources on the chain through multi-chain management signaling: 1) The scheduling information of miners between side chains is synchronized from the main chain to the side chain. 2) The account of the main chain is synchronized to the side chain. 3) The resource packages purchased by DApp developers are synchronized from the main chain to the side chain. 4) GAS can be transferred between the same accounts on the main sidechain.