Blockchain Protocol Stacks

Architecture

Blockchain protocol stacks represent a layered construction, analogous to the TCP/IP model, facilitating modularity and interoperability within decentralized systems. These stacks define the rules governing consensus mechanisms, data transmission, and smart contract execution, impacting transaction throughput and security profiles. Layer-1 protocols establish foundational consensus, while Layer-2 solutions aim to scale transaction capacity and reduce costs, often employing state channels or rollups. The design choices within each layer directly influence the system’s resilience to attacks and its ability to support complex financial instruments.