Function execute_contract 

pub fn execute_contract(contract: &Contract, inputs: &str) -> Result<String>

Execute a contract with given inputs (convenience function — public API)

Arguments

• contract — parsed & verified contract
• inputs — JSON string: array of { "operation": "name", "inputs": { ... } } OR single { "operation": "name", "inputs": { ... } }

Returns

JSON string with execution result including provenance log

Guarantees

• Deterministic: same inputs → same outputs
• Bounded: resource limits enforced (memory, time)
• Verifiable: preconditions checked, postconditions verified
• Logged: all state changes recorded in provenance