"""Offline verifier: python verify_round.py talisman-round-123.json [saved_commitment]."""
import json, sys
from pathlib import Path
from game_v29 import verify_proof
if __name__=="__main__":
    if len(sys.argv)<2:raise SystemExit("Usage: python verify_round.py ROUND.json [PRECOMMITTED_HASH]")
    try:
        proof=json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
        verify_proof(proof,sys.argv[2] if len(sys.argv)>2 else None)
    except Exception as exc:raise SystemExit("FAIL: "+str(exc))
    print("PASS: seed commitment, rule snapshot, all cells/cascades, awards, pool and balances replayed exactly.")