> For the complete documentation index, see [llms.txt](https://polarischain-1.gitbook.io/polarischain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://polarischain-1.gitbook.io/polarischain/3.-cryptographic-foundations/3.9-slashing-and-equivocation-deterrence.md).

# 3.9 Slashing & Equivocation Deterrence

Polarischain implements a two-tier enforcement model optimized for institutional compliance and network security:

* **Tier 1: Reward Forfeiture.** Validators reported by `≥ 2f+1` stake for sustained downtime, transaction censorship, or equivocation forfeit all rewards for the current epoch. Forfeited rewards are redirected to the network redistribution pool, avoiding perverse incentive loops while maintaining neutral economic posture.
* **Tier 2: Permanent Authority Ban.** Cryptographic evidence of equivocation (conflicting blocks for the same round) triggers an irreversible ban keyed to the validator’s authority index, not IP address. Banned authorities are rejected at the P2P layer and require explicit governance intervention for reinstatement.

**No Principal Slashing.** Polarischain deliberately avoids destroying bonded stake. This design choice addresses institutional fiduciary constraints and eliminates game-theoretic attack vectors (e.g., “slash-then-unbond” exploits). Reward forfeiture combined with permanent network exclusion provides equivalent economic deterrence while preserving legal clarity for custodial, treasury, and regulated operators.


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