sudo_set_nominator_min_required_stake
Call v146 → current #43Sets the minimum stake required to be a nominator/delegator.
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with sudo_set_nominator_min_required_stake, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch and modifies storage: SubtensorModule.NominatorMinRequiredStake, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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Used by: subnet owners
The Big Picture
Prevents dust delegations by requiring minimum stake to participate in delegation.
Use Cases
- Controlling delegation spam
- Ensuring meaningful delegation
From Chain Metadata
Sets the minimum stake required for nominators, and clears small nominations that are below the minimum required stake.
Input Parameters
| # | Name | Type | Description |
|---|---|---|---|
| 0 | min_stake | u64 | min_stake (u64) (RAO -> TAO (/ 10^9)) |
Permissions
Origin
Root
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Caller is root account
Effects
Storage Modified
Postconditions
- NominatorMinRequiredStake updated
Side Effects
- Affects who can delegate stake
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 sudo_set_nominator_min_required_stake call (typed, named args)
const min_stake = 1_000_000_000n;
const tx = api.tx.AdminUtils.sudo_set_nominator_min_required_stake({
min_stake,
});Runtime Info
View Source- Pallet Index
- 19
- Call Index
- 43
- First Version
- v146
- Current Version
- v411