LastHotkeyEmissionOnNetuid

Storage Map v233 → v411

Block of last emission received by a hotkey on a subnet .

Explore chain
Queried by: validatorsminersanalytics

The Big Picture

Tracks when each hotkey last received emission on each subnet. Useful for monitoring neuron activity and debugging emission distribution.

Use Cases

  • Monitor emission activity
  • Debug missing emissions
  • Build emission tracking tools

From Chain Metadata

DMap ( hot, netuid ) --> emission | last hotkey emission on network.

Purpose & Usage

Purpose

Track emission timing for hotkeys per subnet.

Common Query Patterns

  • Query by (hotkey, netuid)

Query Keys

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

Stored Value

emission (u64)

RAO -> TAO (/ 10^9)

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 LastHotkeyEmissionOnNetuid storage
const hot = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";
const netuid = 1;

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

Version History

v233 block 4,920,350 Added
v235–v237 · runtime versions skipped on chain (never deployed)
v238 block 4,936,550 Internal re-bind
v266–v272 · runtime versions skipped on chain (never deployed)
v273 block 5,659,032 Internal re-bind
v275–v275 · runtime versions skipped on chain (never deployed)
v276 block 5,781,672 Internal re-bind
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
v233
Current Version
v411