At the dawn of the blockchain age, Layer 1 laid the foundation for what has become one of the revolutionary industries in this Millenium.
Layer 1 is the underlying main blockchain architecture.
As a way to meet the needs of scalability, Layer 2 solutions were introduced.How does Layer 2 actually work?Built on top of the Layer 1 network, Layer 2 solutions rely on a server or a grouping of servers.
Node operators ensure speed, efficiency, and security of transactions.
For example, some solutions called rollups gather multiple transactions into a single transaction, create a cryptographic proof of the transactions, and then submit this proof to Layer 1 as a record.
In some instances, transactions can not be executed at all because of network congestion, and gas fees are deducted anyway.