This event was removed in v326

This event is no longer emitted in the current runtime. Existed from v123 to v326. Shown here for historical reference.

KeyChanged

Event Removed v123 → v326 (removed) #4

A Triumvirate member changed their key.

Useful for: validatorsanalytics

The Big Picture

Security without losing seat.

Use Cases

Track key rotations

From Chain Metadata

One of the members' keys changed.

Triggers

Emitted by

change_key

Preconditions

Origin is member

Effects

Postconditions

Key updated

This event has no data fields.

Code Examples

import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";

const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });

// Subscribe to KeyChanged events
api.query.system.events((events) => {
  events
    .filter(({ event }) =>
      event.section === stringCamelCase("TriumvirateMembers") &&
      event.method === "KeyChanged"
    )
    .forEach(({ event }) => {
      console.log("KeyChanged:", event.data.toHuman());
    });
});

Runtime Info

Pallet Index: 9
Event Index: 4
First Version: v123
Removed In: v326

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