2B or not 2B (Blockchain and Big data): Open-source blockchain implementations and graph/data analysis in Python

Why even FAGA (Facebook, Amazon, Google, Apple) companies do open-source and multiple implementations? The talk covers the "why, what, and how" part of blockchain and graph data analysis. We'll illustrate concepts with code examples and demo. Blockchain, represented as a graph, is a state machine-based trust machine. Our illustration is GCoin, an open-source blockchain where "G" represents Governance and Global.