Back to Display Filter Reference More recently, we implemented the Taproot upgrade, enabling more scalable and private complex spending conditions for Bitcoin as well as signature aggregation. This, however, was likely not the last upgrade Bitcoin will see, and many proposals are already in the works that may eventually become a part of the core protocol. After studying this chapter, you should be able to understand a bit of history and early attempts to create electronic cash systems. An overview of the Bitcoin blockchain and the transaction management system in Bitcoin. You will also learn about the ideas behind why Bitcoin what year did bitcoin start is an economic system more than a cryptographic system and an immutable evidence trail. You will also learn more about a block and how the blocks are chained together forming a timestamped server storing transaction information.