register_limit
Call v401 → v424, v432 → current #134User register a new subnetwork via burning token, but only if the
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with register_limit, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks where it may fail with errors like HotKeyNotRegisteredInSubNet, NotRegistered, HotKeyNotRegisteredInNetwork, followed by dispatch, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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From Chain Metadata
User register a new subnetwork via burning token, but only if the on-chain burn price for this block is <= `limit_price`. `limit_price` is expressed in the same TaoCurrency/u64 units as `Burn`.
Migration Notes
v424 v432 Breaking
netuid changed from u16 to NetUid
Update decoders: SCALE encoding is positional, so any signature change (added, removed, or type-changed fields, or storage shape changes) shifts byte offsets and existing decoders will misparse this item. Re-derive types from the new metadata.
Input Parameters
Permissions
Origin
Unknown
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Required conditions for addition met
Effects
Postconditions
- Item successfully added/registered
Possible Errors
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 register_limit call (typed, named args)
const netuid = 1;
const hotkey = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";
const limit_price = 0n;
const tx = api.tx.SubtensorModule.register_limit({
netuid,
hotkey,
limit_price,
});Version History
v401 block 8,036,576 3 args
v432 block 8,636,190 3 args Current
Runtime Info
View Source- Pallet Index
- 7
- Call Index
- 134
- First Version
- v401
- Current Version
- v472