Solana's Account Model Explained by Someone Who Got Confused by It First

The article explains Solana’s account model through a developer’s hands-on exploration.

In Solana, code lives in stateless program accounts while state is stored separately in data accounts, including wallet accounts.

Each account has five key fields, and transactions must explicitly list every account they will touch.

This separation is central to Solana’s parallel execution model and overall throughput.