"A propulsive story of a new breed of investigators who have cracked the Bitcoin blockchain, taking once-anonymous realms of money, drugs, and violence and holding them up to the light black markets have always thrived in the shadows of society. Increasingly, these enterprises--drug dealing, money laundering, human trafficking, terrorist funding--have found their shadows online. Digital crime lords inhabiting lawless corners of the internet have operated more freely than their analog counterparts could have ever dreamed of. At the heart of their massive conspiracies: cryptocurrency. By transacting not in dollars or pounds but in Bitcoin--a currency with anonymous ledgers, overseen by no government, beholden to no bankers--black marketeers robbed law enforcement for years of their chief method of cracking down on criminal markets, namely, following the money"--Provided by publisher.