Deterministic responses

[gshep]

Problem to Solve

@NikVolf suggested:

Program in the state A responded with a payload C to a message B. Then we may not execute the program to obtain the response to the message B next time but just provide the payload C iff the program keeps its state A.

Possible Solution

add some circular buffer (program_memory_hash, message_payload_hash) for several predefined responses calculate hash of the message on its creation calculate/reset memory hash after program execution

Notes

As an example get_balance method for some NFT program could be provided