force_slash_deposit
Call v154 → current #5Slash a deposit from a safe-mode activator/extender (privileged origin only).
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with force_slash_deposit, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch which emits events: DepositSlashed and modifies storage: Deposits, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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Used by: validatorsdevelopers
The Big Picture
The deposit mechanism deters frivolous safe-mode activations. This call lets governance punish bad actors by confiscating their deposits for abuse.
Use Cases
- Punish frivolous safe-mode activations
- Deter abuse of the mechanism
From Chain Metadata
Slash a deposit for an account that entered or extended safe-mode at a given historical block. This can only be called while safe-mode is entered. Emits a [`Event::DepositSlashed`] event on success. Errors with [`Error::Entered`] if safe-mode is entered. Can only be called by the [`Config::ForceDepositOrigin`] origin.
Input Parameters
Permissions
Origin
Unknown
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Caller is ForceDepositOrigin
- Safe-mode is currently entered
- Account has a deposit at the specified block
Effects
Events Emitted
Storage Modified
Postconditions
- Deposit is slashed (not returned to account)
- DepositSlashed event emitted
Side Effects
- Slashed funds may go to treasury depending on config
Code Examples
import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443
const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);
// Build force_slash_deposit call (typed, named args)
const account = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";
const block = 0;
const tx = api.tx.SafeMode.force_slash_deposit({
account,
block,
});Runtime Info
- Pallet Index
- 20
- Call Index
- 5
- First Version
- v154
- Current Version
- v411