import time

def simulate_fluctuations(state):
    """
    Simulates price harmonization across commodities.
    """
    output = {}
    timestamp = int(time.time())

    for commodity in state["commodities"]:
        base = abs(hash(commodity)) % 500 + 1000
        correction = (hash(commodity + str(timestamp)) % 50) - 25

        output[commodity] = {
            "synthetic_price_index": base,
            "correction": correction,
            "harmonized_price_index": base + correction,
            "confidence": round(0.85 + (abs(correction) / 500), 3)
        }

    return output