What is Sidechain

A sidechain is a blockchain that links to the main chain. The blockchains are linked via two-way pegs, which allow for bidirectional currency and token transactions. Any coins or tokens delivered to the sidechain are locked on the parent chain to which they are linked. The equivalent quantity of the asset is then unlocked on the sidechain. Sidechains are used by developers to build scaling solutions and add functionality to layer-1 blockchains. Sidechains exist between a layer-1 and a layer-2 solution. Despite the fact that they are an extra protocol to the main chain, such as layer-2 solutions, sidechains frequently have different security protocols. Furthermore, sidechains can implement different consensus techniques that may differ from those used by the main chain.

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