一是 “软件定义硬件”。全球销量突破70万台的Plaud的录音卡片是一个范本，其超薄录音设备本身并非利润中心，甚至可能以成本价销售，真正的价值在于，它通过硬件这一无可替代的物理入口，切入“会议记录”这一高频刚需场景，将用户锁定在后续的AI转写、摘要生成等订阅服务中。
How does blockchain work?Blockchain records digital information and distributes it across the network without changing it. The information is distributed among many users and stored in an immutable, permanent ledger that can't be changed or destroyed. That's why blockchain is also called "Distributed Ledger Technology" or DLT.
，这一点在PDF资料中也有详细论述
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