<https://www.coinsignal365.com/search/label/%EC%82%AC%ED%86%A0%EC%8B%9C%EC%97%90%EA%B2%8C%20%EB%B3%B4%EB%82%B4%EB%8A%94%20%ED%8E%B8%EC%A7%80>
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"사토시에게 보내는 편지"
<https://www.coinsignal365.com/2021/11/2021-11-1-letter-to-satoshi-nakamoto-on_11.html>