bitcoin(btc): 16,477 | ethereum(eth): 1,222 | nora(nrt): 0.00001752 ($0.29)

Layer 0

Road, underlying infrustracture to create chains. Allows crosschain interoperability

Layer 1

Solutions that improve layer 0 and adding consensus mechanisms

Layer 2

Solutions for layer 1 such as scaling and inherits layer 1's security

Layer 3

Blockchain based applictions such as; De-Fi Apps, distributed storage, and cross-chain functionality