This practice focuses on developing consensus protocols that specifically address vulnerabilities such as Sybil attacks. By incorporating anti-Sybil checks and promoting stake diversification, these mechanisms prevent malicious entities from gaining disproportionate influence within the network. The paper “SybilQuorum: Open Distributed Ledgers Through Trust Networks” explores leveraging social network-based Sybil defenses to secure open distributed ledgers. By expressing trust relationships through the ledger, the proposed system aims to thwart Sybil attacks and ensure consensus among honest participants, providing an alternative approach to securing decentralized networks. 

https://arxiv.org/abs/1906.12237