Layer-2 Scaling Solution

Layer-2 scaling solutions are innovative protocols integrated into blockchains like Bitcoin and Ethereum. These solutions function as secondary layers, complementing the main blockchain to enhance transaction throughput and reduce transaction costs. By leveraging technologies such as sidechains, state channels, Zero-Knowledge Rollups (zk-Rollups), and various other techniques, Layer-2 solutions offer scalability improvements. Notable examples of Layer-2 scaling solutions include the Lightning Network for Bitcoin, the SKALE Network for Ethereum, and the blockchain-agnostic Arpa Chain.