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order: 20
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title: Slashing Overview
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parent:
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title: "slashing"
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-->
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# `slashing`
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## Abstract
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This section specifies the slashing module of the Cosmos SDK, which implements functionality
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first outlined in the [Cosmos Whitepaper](https://cosmos.network/about/whitepaper) in June 2016.
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The slashing module enables Cosmos SDK-based blockchains to disincentivize any attributable action
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by a protocol-recognized actor with value at stake by penalizing them ("slashing").
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Penalties may include, but are not limited to:
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- Burning some amount of their stake
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- Removing their ability to vote on future blocks for a period of time.
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This module will be used by the Cosmos Hub, the first hub in the Cosmos ecosystem.
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## Contents
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1. **[Concepts](01_concepts.md)**
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- [States](01_concepts.md#states)
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- [Tombstone Caps](01_concepts.md#tombstone-caps)
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- [ASCII timelines](01_concepts.md#ascii-timelines)
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2. **[State](02_state.md)**
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- [Signing Info](02_state.md#signing-info)
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3. **[Messages](03_messages.md)**
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- [Unjail](03_messages.md#unjail)
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4. **[Begin-Block](04_begin_block.md)**
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- [Evidence handling](04_begin_block.md#evidence-handling)
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- [Uptime tracking](04_begin_block.md#uptime-tracking)
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5. **[05_hooks.md](05_hooks.md)**
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- [Hooks](05_hooks.md#hooks)
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6. **[Events](06_events.md)**
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- [BeginBlocker](06_events.md#beginblocker)
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- [Handlers](06_events.md#handlers)
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7. **[Staking Tombstone](07_tombstone.md)**
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- [Abstract](07_tombstone.md#abstract)
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8. **[Parameters](08_params.md)**
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