What does a blockchain & cryptocurrency attorney do?

As a financial professional, I'm curious to understand the role and responsibilities of a blockchain and cryptocurrency attorney. Could you elaborate on the core duties they perform? Are they primarily focused on regulatory compliance, contract drafting, dispute resolution, or do they cover a broader range of legal services? Additionally, what kind of challenges do they encounter in this rapidly evolving field, and how do they stay updated with the latest developments in blockchain technology and cryptocurrency regulations? I'm particularly interested in understanding their role in advising clients on risk management and compliance with relevant laws and regulations.