proveTransaction
Prove a transaction locally using cached proving keys.
Input/output formats are identical to the proof server:
Input: hex-encoded (Transaction, HashMap) tuple (same as POST /prove-tx body)
Output: hex-encoded proven Transaction (same as /prove-tx response)
Return
Proven transaction hex, or null on failure
Parameters
unprovenTxHex
Same format currently sent to proof server
keysDir
Absolute path to directory with cached proving keys