A Root Chain is the main blockchain in a multi-chain ecosystem. It serves as the foundational layer that anchors and validates other connected chains, often referred to as child or side chains. Child chains can operate independently, processing their transactions and executing smart contracts. However, they benefit from the security and consensus mechanism of the Root Chain. This architecture allows for scalability, as multiple child chains can handle separate tasks or applications without overcrowding the main chain.The Root Chain maintains an overall ledger of all transactions across the ecosystem, ensuring consistency and security. Changes or updates made on child chains can be reflected on the Root Chain, facilitating smooth interoperability among the various components. In summary, the Root Chain is essential for maintaining order and security within multi-chain structures, allowing different applications to function efficiently and securely while being tied to a common foundational platform.