The Nakamoto Consensus, the distributed consensus mechanism written by the creator of Bitcoin, Satoshi Nakamoto, in his whitepaper, has helped enable the agreement of a shared history of transactions by decentralized networks without a central governing entity. It employs a blend of Proof of Work, cryptographic security, incentives, and a longest chain rule. In a Nakamoto Consensus system, the consensus on a single history of valid transactions is based on proof-of-work-powered mining competition among the participants.
Following its consensus rule, the chain that has had the most computational work performed on it will be identified as the one to be followed by participants of the network. Through this methodology, thousands of separate entities are capable of reaching consensus in a trustless manner. It’s also immune to manipulation and double-spend attacks. Nakamoto Consensus’s trillion-dollar architecture served as the “brain” of Bitcoin and catalyzed the emergence of many other blockchain networks, as it’s thought of as the most significant step forward towards achieving decentralized consensus at scale.