[原理](%E5%8E%9F%E7%90%86.md) [比特币交易流程图](%E6%AF%94%E7%89%B9%E5%B8%81%E4%BA%A4%E6%98%93%E6%B5%81%E7%A8%8B%E5%9B%BE.md)