This chapter focused on illustrating HLF, its architecture, and its components. During this chapter, we looked at the Hyperledger project and walked though the qualifiers for the Hyperledger project. This chapter followed an example-based approach in illustrating HLF's architecture. We explored peers, nodes, algorithms, consensus, the membership service, and orderer services, as well as master identity, security, and privacy. The chapter also construed channels and PDC to allow private transactions between organizations. It concluded with design strategies for storing large objects—on-chain or off-chain. From the next chapter onward, we will delve into creating an HLF network and authoring chaincode to address a specific use case.