SI 486I Spring 2022 / Notes


This is the archived website of SI 486I from the Spring 2022 semester. Feel free to browse around; you may also find more recent offerings at my teaching page.

Unit 8: Alternative consensus mechanisms

1 Summary and Goals

We saw that Bitcoin mining is the cause of numerous technical and sociatal issues. As a result, many alternative cryptocurrencies are adopting or investigating alternative methods to achieve blockchain consensus and reliability. We will mostly focus on ASIC-resistant mining (as is employed in Ethereum today) and Proof of Stake (as is planned for Ethereum 2.0).

2 Reading

  1. Chapter 8 of Narayanan et al, which starts on page 216 of this pdf. Particular focus: sections 8.2 and 8.5