March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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252 ｜ 第 9 章
9.9.3 Novi
Facebook
自己也将开发自己的钱包，被称为
Novi
，以促进交易。鉴于
Facebook
在其众多平台上拥有数十亿用户，包括
Messenger
、
Instagram
、
WhatsApp
和
Oculus VR
。
Novi
钱包的影响可能很大。
Libra
还将支持一些第三方钱包的实施。网络本身预计是开放的，钱包是金融
服务的门槛。
KYC/AML
将需要成为
Novi
的一个组成部分，而这是
Facebook
可以很容易地在其产品中实现的，因为它手头已经有了大量的用户数据。
Libra
的中心化挑战
Libra
面临许多挑战。其中之一是慢慢建立一个更大
POS
证明共识网络
的同时变的中心化。从技术角度来看，实现这一目标可能会被证明是具
有挑战性的。
监管问题可能会影响这个网络的形成，预计会随着时间的推移慢慢推出。
例如，与大多数加密货币不同，
Libra
支付将需要是可逆的，以符合有关
消费者保护的法规。
然而，
Libra
确实表明，本书所讨论的底层技术正在进行实验，并且规模
部署是以区块链之前无法达到的。虽然
Libra
协会主张网络的去中心化，
但在中心化和去中心化之间可能必须有一个平衡，以使其高效、稳定和
可扩展。
9.9.4 Libra
协议如何工作
Libra
的网络包含两种类型的节点：验证者节点和完整节点。验证者节点是
经过许可的，由
Libra
协会的组织组成。这些节点管理网络的治理，并使用
LBFT
共识协议处理
Libra
交易。
其他的区块链 ｜ 253
完整的节点可以由任何人运行，有两个目的。
1.
他们充当 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.