Blockchain Models

• Blockchain as Authority (introduced in What Is This All About?)
  • State
  • Rules of the authority
  • Mutation
• Blockchain as State Machine (introduced in State Machine)
  • State
  • State transition function
  • Transition
• Blockchain as a Computer (introduced in Execution, Ordering and History)
  • Memory (state)
  • Code (rules)
  • Inputs to code execution (Blocks and Transactions within them)