加密貨幣世界：比特幣，區塊鏈和互聯網的未來

　　Five years after his first documentary, award-winning producer/director Torsten Hoffmann revisits Bitcoin and sets out to explore the evolution of the blockchain industry and its new promise. Can this technology, designed to operate independent of trust and within a decentralized network, really provide a robust alternative to the Internet as we know it?