March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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加密货币的基础知识 ｜ 51
最常见的生成钱包助记词的机制是
BIP39
，它定义了从随机数创建短语的标
准。
无论用户是否掌握自己的私钥，同样都面临着丢失加密货币的风险。加强安
全措施是很重要，确保使用安全的通信工具，设置双重认证，开启手机运营
商
PIN
锁，并注意网络钓鱼。一旦加密货币离开你的钱包，几乎不可能再找
回来。
2.7
挖矿
一开始，加密货币挖矿只是加密货币爱好者们所热衷的活动。早期支持比特
币网络的用户下载并运行比特币核心软件，并且只要在计算机上运行比特币
核心软件，都可以挖到几个比特币。
2010
年，一枚比特币价值
0.30
美金，所以矿工赚不了多少钱，只当是一种爱好。
当时的区块奖励是
50 BTC
，所以如果一个矿工每天发现一个区块，他们就能
赚到
15
美金。然后，随着时间的推移，业余爱好者逐渐被专业的矿工取代。
2.7.1
挖矿与激励机制
随着时间的推移，随着比特币价格的增长，以及响应专业的挖矿硬件需求的
新设备的出现，挖矿的“难度”也随之上升。没过多久，仅仅使用普通计算
机已经不足以挖矿。矿工们需要被称为图像处理单元（
graphics processing
units
，
GPU
）的特殊计算机硬件来竞争。然后他们开始使用被称为专用集成
电 路（
Application Specific Integrated Circuit
，
ASIC
）的特殊处理器来提高效率。
今天，大多数加密货币挖矿都是在巨大的数据中心中完成的，一排排的机器
需要大量的电力和冷却。那么，我们是如何走到这一步的呢？
这就是激励机制的问题。一开始，工人们用个人电脑相互竞争 ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.