Preparation for Recitation on Blockchains

Read "Do you need a Blockchain?" by Wüst and Gervais. A blockchain is a data structure that leverages cryptographic techniques to create a public distributed ledger; blockchains first came to attention as part of the implementation of Bitcoin and similar cryptocurrencies, but there has been some enthusiasm for applying them in other domains. This paper summarizes the nature and properties of blockchains, lays out some principles for how to use them sensibly, and takes up some common proposed use cases.

As you read, think about:

Question for Recitation

Before you come to this recitation, write up (on paper) a brief answer to the following (really—we don't need more than a couple sentences for each question). If your TA has requested that you email your answer to them, you may do that instead, but it should still be handed in before your recitation begins.

Your answers to these questions should be in your own words, not direct quotations from the paper.

As always, there are multiple answers to each of these questions.