What is Bitcoin? (v1)
What is Bitcoin L1 and L2? Layer 1 vs. Layer 2: The Difference Between Blockchain ... Layer 1 scaling solutions are changes made to a blockchain's programming that allow it to handle varying amounts of transactions. Layer 2 scaling solutions are programs, networks, or other blockchains that offload some of a primary chain's work, conduct it, and periodically send the data back to be processed.