The network is like a blockchain ... Now that you have learned the architecture, let’s focus on the four main layers: layer 1, layer 2, layer 3 and layer 0. Each plays a unique role in making ...

An independent blockchain acting in concert with Bitcoin, Ethereum or other major chain, which retroactively became known as "Layer 1 ... 2 Lightning chain uses state channels (see Lightning Network).

Powered by Optimism's OP stack, Unichain—like other layer-2s on Ethereum—offers faster and cheaper transactions compared to ...