Andrew Miller is a computer science PhD student at the University of Maryland who focuses on cryptocurrency. Having gotten involved in Bitcoin in 2011 and focused on cryptocurrencies early in his research work, he is one of the most prolific researchers in the field.
Our discussion mainly focused on security aspects of Ethereum including their gas model, Proof-of-Work algorithm and plans to switch to Proof-of-Stake.
Topics covered in this episode:

How he got involved in doing research on Bitcoin and cryptocurrencies
The blossoming of academic interest in the topic
His work on analyzing Ethereum’s gas model
Potential vulnerabilities of the Gas model
Ethereum’s PoW algorithm
How Ethereum handles the block size limit

Episode links:

Andrew's University Website
Ethereum Analysis: Gas Economics and Proof of Work Overview
Ethereum Analysis: Gas Economics
Ledger Journal
Hawk: Privacy-Preserving Smart Contracts

This episode is hosted by Brian Fabian Crain and Meher Roy. Show notes and listening options: epicenter.tv/111