Blockchain – Bitcoin Vs. Blockchain Having concluded and understood the essence of the single most popular implementation of the Blockchain protocol - The Bitcoin - Professor Cerf outlines the complete Blockchain protocol, the one that goes beyond cryptocurrencies and into any and every domain where databases are used in an immutable and distributed way. Ever wanted to understand the difference between Bitcoin and Blockchain? This lesson finally makes this difference clear.Professor Cerf also explains the reason people often term Blockchain “The currency of trust” and the essence by which having the Blockchain system operationalize allows individuals to interact with complete reliability without the need to truly know each other.