How is a smart contract stored on a Blockchain

Question

I understand that a smart contract can be complied into an EVM bytecode and deployed on the blockchain in a block having a specified height and a transaction hash. But when the state of the block changes, how does the blockchain record this change, when a transaction has been issued to interact with that smart contract to change its state (e.g. the value of a variable)?

Answer 1

Smart contract template and transaction events are both stateless and immutable. They're both stored in blockchain. The final smart contract state isn't stored in blocks directly, rather it is computed by node (ethereum virtual machine) from previously mentioned templates and transactions.