State Transition
A state transition is the process by which a blockchain moves from its current ledger state to a new state after processing a block of transactions. This transition involves validating all transactions against protocol rules, updating account balances, and executing smart contract logic.
Every node in the network must independently verify these transitions to ensure that the global state remains consistent and secure. If a transition violates the rules, it is rejected, preventing invalid data from being recorded on the chain.
This deterministic execution is the core functionality of any programmable blockchain, allowing for complex decentralized applications to function reliably. Understanding state transitions is vital for developers and auditors assessing the integrity and security of smart contract platforms.