Self-Proving Penalty

Definition ∞ A self-proving penalty is a mechanism within a blockchain protocol where a malicious or incorrect action by a participant automatically generates the evidence required to penalize them. This evidence is verifiable on-chain, triggering automated sanctions like slashing of staked assets. It reduces the need for external arbitration. This system enforces protocol rules autonomously.
Context ∞ This concept is fundamental to the security of many proof-of-stake (PoS) blockchains, where validators are incentivized to behave honestly through the risk of automated penalties. Designing effective self-proving penalties is crucial for preventing attacks such as double-spending or equivocation. News often covers instances where these mechanisms are activated due to validator misbehavior, demonstrating their operational importance.