Sidechain

A sidechain is a separate blockchain that runs parallel to a main blockchain (the parent chain) and is connected to it through a two-way bridge. This bridge allows assets to be transferred between the two chains. Sidechains can have their own consensus mechanisms and block parameters, enabling faster transactions, lower fees, or specialized functionality without congesting the main chain. The main chain's security is not directly shared, so sidechains must provide their own security guarantees.