Interest in new cryptographic applications has exploded in recent years, driven by advances in distributed systems and rapid development of new currencies and financial platforms running in the real world today. Zero-knowledge cryptographic protocols are essential to add privacy, security, and scalability to these systems. Recent work shows new potential for widespread use of ZK protocols and many new related research possibilities not only in cryptography but also in algorithm/mechanism design, cryptoeconomics, and theory of computation. (https://research.metastate.dev/multi-asset_shielded_pool, https://eprint.iacr.org/2020/1536, https://eprint.iacr.org/2020/499)