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.
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