Validator Neutrality

Definition ∞ Validator neutrality refers to the principle that participants responsible for validating transactions and proposing blocks in a proof-of-stake blockchain operate without bias or preference towards specific transactions or users. This impartiality is crucial for maintaining the integrity, fairness, and censorship resistance of the network. It prevents validators from manipulating transaction order or excluding certain transactions. This ensures equitable network operation.
Context ∞ Discussions around validator neutrality are central to the security and decentralization of proof-of-stake networks, especially concerning potential issues like MEV (Maximal Extractable Value) extraction. The debate often involves designing economic incentives and protocol rules that discourage validator collusion or predatory behavior. Future research aims to develop more robust mechanisms to enforce and verify validator neutrality, strengthening the fundamental principles of decentralized systems.