Learn how the blockchain authenticates transactions and distributes data to peers — nodes connected to the network. This course shows you how multiple versions of a blockchain are reconciled into one, discusses blockchain limitations, and delves into organizational applications of blockchain technology.
区块链 专项课程加州大学尔湾分校
提供方
加州大学尔湾分校
Since 1965, the University of California, Irvine has combined the strengths of a major research university with the bounty of an incomparable Southern California location. UCI’s unyielding commitment to rigorous academics, cutting-edge research, and leadership and character development makes the campus a driving force for innovation and discovery that serves our local, national and global communities in many ways.
教学大纲 - 您将从这门课程中学到什么
完成时间为 3 小时
Authenticating Transactions and Distributing Data to Peers
During this initial week we will start by looking at how the blockchain data are shared among nodes in the peer-to-peer network over the internet and how the interconnectivity of the nodes is managed.
完成时间为 3 小时
1 个视频 （总计 23 分钟）, 3 个阅读材料, 1 个测验
3 个阅读材料
Blockchain Basics1小时
The Internet of Money10分钟
Supplemental Video (Optional)50分钟
1 个练习
Authenticating Transactions and Distributing Data to Peers30分钟
完成时间为 3 小时
Determining the Canonical Version of a Blockchain
We will continue to look more closely at how nodes add blocks to the data structure with the goal of maintaining a consistent transaction history. We’ll also see that multiple histories can sometimes arise due to a variety of factors ranging from benign, but unpredictable, node outages to intentional malfeasance. This requires that the system have a means of collectively determining which single history is the correct one. We’ll explore two approaches to achieve this: the longest chain criterion and the heaviest chain criterion and practice applying the principles that we have learned in this week’s assignment.
完成时间为 3 小时
3 个阅读材料
3 个阅读材料
Blockchain Basics1小时
The Internet of Money10分钟
Videos35分钟
完成时间为 3 小时
Blockchain Limitations
The blockchain is not a perfect system and indeed has its limitations. We will explore some of the constraints of the blockchain and address the issues that cause such limitations.
完成时间为 3 小时
1 个视频 （总计 18 分钟）, 2 个阅读材料, 1 个测验
2 个阅读材料
Blockchain Basics1 小时 20 分
Supplemental Video (Optional)30分钟
1 个练习
Blockchain Limitations30分钟
完成时间为 4 小时
Organizational Applications of Blockchain
We will finish the course by exploring other opportunities for using a blockchain approach to decentralize what have been heretofore centralized industries in which individual entities have controlled or consolidated information. We will develop ideas for applying a blockchain approach to industries other than cryptofinance.
完成时间为 4 小时
1 个视频 （总计 11 分钟）, 2 个阅读材料, 1 个测验
2 个阅读材料
The Internet of Money1小时
Supplemental Videos (Optional)1 小时 10 分
关于 区块链 专项课程
Gain a fundamental understanding of blockchain technology and its components. Learn how such applications as cryptofinance makes use of the blockchain for decentralized, peer-to-peer transaction processing. Apply your knowledge of blockchain technology to enhance your trust and confidence in cryptocurrency trading and other situations where the blockchain is used.
常见问题
我什么时候能够访问课程视频和作业？
讲座和作业的访问权限取决于您的注册类型。如果您以旁听模式参加课程，则可以免费查看大多数课程资料。要访问评分作业并获得证书，您需要在旁听期间或之后购买证书体验。如果看不到旁听选项：
- 课程可能不提供旁听选项。您可以尝试免费试用，也可以申请助学金。
- 课程可能会改为提供'完整课程，没有证书'。通过此选项，您可以查看所有课程材料、提交所要求的作业，以及获得最终成绩。这也意味着您将无法购买证书体验。
我订阅此专项课程后会得到什么？
您注册课程后，将有权访问专项课程中的所有课程，并且会在完成课程后获得证书。您的电子课程证书将添加到您的成就页中，您可以通过该页打印您的课程证书或将其添加到您的领英档案中。如果您只想阅读和查看课程内容，可以免费旁听课程。
退款政策是如何规定的？
如果订阅，您可以获得 7 天免费试听，在此期间，您可以取消课程，无需支付任何罚金。在此之后，我们不会退款，但您可以随时取消订阅。请阅读我们完整的退款政策。
有助学金吗？
是的，Coursera 可以为无法承担费用的学生提供助学金。通过点击左侧“注册”按钮下的“助学金”链接可以申请助学金。您可以根据屏幕提示完成申请，申请获批后会收到通知。您需要针对专项课程中的每一门课程完成上述步骤，包括毕业项目。了解更多。
还有其他问题吗？请访问 学生帮助中心。
