sudo_set_min_childkey_take_per_subnet
Call v411 → current New #93Sets a subnet -specific minimum child-key take , overriding the global floor with a stricter one.
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with sudo_set_min_childkey_take_per_subnet, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
Click items to navigate. Pan and zoom to explore.
Used by: subnet ownersvalidatorsdevelopers
The Big Picture
Child-key take has a global minimum. Subnet owners can require a higher minimum on their subnet, but never lower than the global floor.
Use Cases
- Subnet owner sets a higher minimum child-key take for their subnet
- Prevent validators on a subnet from setting take below the subnet's floor
From Chain Metadata
The extrinsic sets the minimum childkey take for a subnet. It is callable by root or the subnet owner. The subnet minimum can only make the global minimum stricter.
Input Parameters
Permissions
Origin
Root
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Caller is root or subnet owner
- Resulting minimum is at least as strict as the global minimum
Effects
Postconditions
- MinChildkeyTakePerSubnet[netuid] updated to the new value
Side Effects
- MinChildKeyTakePerSubnetSet event emitted
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_min_childkey_take_per_subnet call (typed, named args)
const netuid = 1;
const take = 0;
const tx = api.tx.AdminUtils.sudo_set_min_childkey_take_per_subnet({
netuid,
take,
});Runtime Info
View Source- Pallet Index
- 19
- Call Index
- 93
- First Version
- v411
- Current Version
- v411