Validator misbehavior refers to any action by a network validator that violates the rules or protocols of a blockchain, often with malicious intent or due to negligence. This includes actions like double signing, withholding blocks, or proposing invalid blocks. Such actions undermine the integrity and security of the network. Proof-of-stake systems typically implement slashing mechanisms to penalize such actions.
Context
Validator misbehavior is a central concern in the security and economic design of proof-of-stake blockchains. A key discussion involves designing effective incentive structures and detection mechanisms to deter and penalize malicious or negligent validator actions. Future developments focus on creating more sophisticated on-chain governance and monitoring tools to quickly identify and address misbehavior, protecting network stability.
This research introduces Accountable Safety, a new PoS property that guarantees finality or provides cryptographic proof of validator misbehavior under minimal synchrony.
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