Layer-2 Scalability Solutions

Architecture

Layer-2 scalability solutions represent a fundamental shift in cryptocurrency network design, addressing inherent limitations in transaction throughput and finality observed on base layers like Bitcoin or Ethereum. These systems operate as overlay networks, processing transactions off-chain while leveraging the security of the underlying Layer-1 for settlement and dispute resolution. Consequently, they aim to reduce congestion and associated fees, enabling a broader range of applications, particularly within decentralized finance and complex derivatives markets. The choice of architecture—whether utilizing state channels, sidechains, or rollups—directly impacts the trade-offs between security, decentralization, and scalability.