#!/usr/bin/env python3
"""Demo skill for smutyan.skill/v0.1 — no network, no writes."""
import hashlib, sys
EMPTY = hashlib.sha256(b"").hexdigest()
EXPECTED = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
ok = EMPTY == EXPECTED
print(f"empty_sha256={EMPTY}")
print(f"match={ok}")
sys.exit(0 if ok else 1)