The most common blockchain layers are layer 1s (L1) and layer 2s (L2). Bitcoin and Ethereum are L1s, or base layers, blockchains because they operate independently from other blockchains.

Zoe Hansen / Investopedia Layer 1 and Layer 2 are both scaling solutions designed to improve the processing speed of blockchain networks. Layer 1 scaling solutions are changes made to a blockchain ...

The most common abstraction layer is the programming interface (API) between an application and the operating system. High-level calls are made to the operating system, which executes the ...