Documents related to Jeffrey Epstein, unsealed on January 30, reveal that he maintained contact with several key figures in the cryptocurrency industry during its early stages. Email records show that Epstein participated in an oversubscribed $18 million seed round for Bitcoin infrastructure company Blockstream in 2014, and increased his personal investment from $50,000 to $500,000 through a fund associated with Joi Ito, then head of the MIT Media Lab. These contacts include Blockstream co-founder Austin Hill and early Bitcoin developer Adam Back. The documents also show that Epstein discussed the definition of Bitcoin with Peter Thiel in 2014; proposed the idea of issuing an "Islamic cryptocurrency" to an advisor to the Saudi royal family in 2016; and that his attitude towards Bitcoin changed multiple times, from believing the concept was clever but flawed in 2011 to explicitly stating in 2017 that it was not worth buying. Furthermore, the names of Michael Saylor and Kevin Warsh, Trump's newly nominated Federal Reserve Chairman, also appeared on the guest list for his 2010 New Year's party in St. Barths. The U.S. Department of Justice stated that the investigation found no evidence that Epstein used cryptocurrency for money laundering or regulatory evasion, and that his role in the crypto space was mainly limited to high-level social interactions, sporadic investments, and observation.