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I am looking for someone to help clarify the 'stacktrace' of interactions that occur when a client interacts with a smart contract.
Clearly, one has to submit a transaction to a miner, who then has to locate the contract by address (by using his/her own local copy of the blockchain?), and complete the computation set out in the contract.
Is the entire contract then re-written once again into the blockchain with the outputs representing the output of the computation that has taken place?
Indeed the miner locates a contract by using their local copy of the blockchain.
Is the entire contract then re-written once again into the blockchain with the outputs representing the output of the computation that has taken place?
Contracts are immutable. But each contract can have a "hard disk", called storage, and that's where the outputs of computations can be written.
Technically:
The web3.js Javascript API Contract Methods are a way to interact with contracts.
JSON-RPC is a lower-level way of interacting with contracts.
