sudo_set_sn_owner_hotkey
Call v273 → v277, v290 → current #67Sets the subnet owner 's hotkey (alias for sudo_set_subnet_owner_hotkey).
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with sudo_set_sn_owner_hotkey, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch and modifies storage: SubtensorModule.SubnetOwnerHotkey, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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Used by: subnet owners
The Big Picture
Alias for sudo_set_subnet_owner_hotkey. Both accomplish the same ownership hotkey update.
Use Cases
- Same as sudo_set_subnet_owner_hotkey
From Chain Metadata
Sets or updates the hotkey account associated with the owner of a specific subnet. This function allows either the root origin or the current subnet owner to set or update the hotkey for a given subnet. The subnet must already exist. To prevent abuse, the call is rate-limited to once per configured interval (default: one week) per subnet.
Input Parameters
Permissions
Origin
Root
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Caller is root or subnet owner
- Subnet exists
- Valid hotkey
Effects
Storage Modified
Postconditions
- Subnet owner hotkey updated
Side Effects
- Owner emissions redirected
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_sn_owner_hotkey call (typed, named args)
const netuid = 1;
const hotkey = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";
const tx = api.tx.AdminUtils.sudo_set_sn_owner_hotkey({
netuid,
hotkey,
});Version History
v273 block 5,659,032 2 args
v290 block 5,947,548 2 args Current
Runtime Info
View Source- Pallet Index
- 19
- Call Index
- 67
- First Version
- v273
- Current Version
- v411