Educational explainer on Stellar's Proof-of-Agreement consensus mechanism, using real-world analogies to explain how quorums, slices, and topens enable decentralized agreement without proof-of-work or proof-of-stake.
This article provides a detailed technical explanation of Stellar's unique Proof-of-Agreement (PoA) consensus algorithm through accessible real-world examples. It covers how validators nominate trusted slices, how quorums form from those slices, and how the system guarantees consensus within topens (sets of intertwined participants). The article emphasizes Stellar's key advantage: attackers cannot influence decision-making without reciprocated trust from existing validators, making reputation and trustworthiness central to network security rather than computational power or stake.
