Trustworthy decentralization based on blockchain tools for social network architectures

The rise of decentralized social networks (DSNs) necessitates robust trust models to ensure secure and reliable interactions in an increasingly dynamic online environment. While blockchain technology has revolutionized finance with cryptocurrencies and decentralized control, its potential to transform trust management in DSNs remains largely unexplored. This survey aims to fill this gap by offering a comprehensive analysis of recent advancements in blockchain-based trust models for social networks. Our work delves into the core concepts of trust, trust models, and trust prediction methodologies within the context of DSNs. We explore how trust is decentralized in social networks, their economic implications, and the architectural frameworks of these systems. We also examine the role of decentralization in fostering trust within these networks and how blockchain technology can further improve trust and security. The survey investigates the relationship between trust and blockchain technology, analyzing various blockchain types and their specific applications in DSNs. We categorize existing trust models based on relevant parameters and critically evaluate their strengths and weaknesses. Finally, we suggest promising future directions for researchers interested in advancing trust management in DSNs empowered by blockchain technology.