<p>Blockchain technologies have the potential to revolutionise many industries. Consensus mechanisms are essential for ensuring consensus among distributed network members. This paper examines the various blockchain consensus mechanisms employed in multiple applications and compares their functionality and characteristics. In particular, we categorise these consensus mechanisms based on the type of trust they establishranging from direct, indirect, implicit, explicit, cognitive, and affective. Thus, it offers a structured framework for understanding their respective strengths. We industries. We highlight their strengths and weaknesses to understand how they work in practice. In this era of rapid technological transformation, this paper contributes to the ever-growing debate on how to adopt, innovate, and optimise blockchain technology. We aim to advance the knowledge of decentralised solutions to real-world problems by providing practical information about how blockchain can drive improvements across the industry.</p>