LastHotkeySwapOnNetuid

Storage Map v276 → v411

Block of last hotkey swap on a subnet .

Explore chain
Queried by: validatorsdevelopers

The Big Picture

Hotkey swaps on subnets are rate-limited. This tracks when the last swap occurred, enabling cooldown calculations and preventing spam swaps.

Use Cases

  • Check swap cooldowns
  • Plan hotkey operations
  • Debug rate limit errors

From Chain Metadata

DMap ( netuid, coldkey ) --> blocknumber | last hotkey swap on network.

Purpose & Usage

Purpose

Track hotkey swap timing for rate limiting.

Common Query Patterns

  • Query by (hotkey, netuid)

Query Keys

#NameTypeDescription
1
netuid
u16 netuid (u16, hashed key component)
2
coldkey
AccountId coldkey (AccountId, hashed key component) (hex -> SS58)

Stored Value

blocknumber (u64)

RAO -> TAO (/ 10^9)

Relationships

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);

// Query LastHotkeySwapOnNetuid storage
const netuid = 1;
const coldkey = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";

const result = await api.query.SubtensorModule.LastHotkeySwapOnNetuid.getValue(netuid, coldkey);
console.log("LastHotkeySwapOnNetuid:", result);

Version History

v276 block 5,781,672 Added
v278–v289 · runtime versions skipped on chain (never deployed)
v290 block 5,947,548 Internal re-bind
v307–v314 · runtime versions skipped on chain (never deployed)
v315 block 6,414,634 Internal re-bind
v316–v319 · runtime versions skipped on chain (never deployed)
v320 block 6,523,566 Internal re-bind
v327–v333 · runtime versions skipped on chain (never deployed)
v334 block 6,811,690 Internal re-bind
v353–v360 · runtime versions skipped on chain (never deployed)
v361 block 7,063,679 Internal re-bind
v386–v390 · runtime versions skipped on chain (never deployed)
v391 block 7,782,857 Internal re-bind
v394–v400 · runtime versions skipped on chain (never deployed)
v401 block 8,036,576 Internal re-bind Current

Runtime Info

View Source
Pallet
SubtensorModule
Storage Kind
Map
First Version
v276
Current Version
v411