Arc 2 Catch-Up: Reading Solana Like a Public Database

Arc 2 of 100 Days of Solana focuses on reading the blockchain, treating Solana as a massive public database where queries are free. This shifts the perspective from identity to information retrieval. Arc 4 explains the Solana account model, detailing how on-chain state is stored and decoded. Unlike Web2, almost everything on Solana is an account, including wallets, programs, token mints, and application state, representing a significant mental model shift for developers.