A layer-1 network (L1) is another name for a base blockchain. Bitcoin, Ethereum, Solana and BNB Smart Chain are all layer-1 networks. We refer to them as layer-1 because these are the main networks within their ecosystem. Layer-2 blockchains might be built on top of these L1s in order to scale the base layer and improve on some of its functionalities. Ethereum for instance suffers from high transaction fees especially when the network is busy, that’s why L2 solutions like Immutable X and Arbi...