PureCreated

Event v149 → current #1

Emitted when a new keyless (pure) proxy account is created.

View events on chain

Useful for: validatorsdeveloperswalletsanalytics

The Big Picture

Pure proxy accounts have no private key - only accessible via proxy.

Use Cases

Track keyless account creation

From Chain Metadata

A pure account has been created by new proxy with given disambiguation index and proxy type.

Triggers

Emitted by

create_pure

Preconditions

Sufficient deposit
No duplicate pure proxy

Effects

Storage Modified

Proxies

Postconditions

Keyless account created
Creator registered as proxy

Side Effects

Deposit reserved

Event Data

#	Name	Type	Description
0	pure	AccountId	The newly created pure proxy account address (hex -> SS58)
1	who	AccountId	Account that created the pure proxy (hex -> SS58)
2	proxy_type	ProxyType	Type of proxy (Any, NonTransfer, Staking, etc.)
3	disambiguation_index	u16	Index to distinguish multiple pure proxies with same parameters

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 PureCreated events
api.query.system.events((events) => {
  events
    .filter(({ event }) =>
      event.section === stringCamelCase("Proxy") &&
      event.method === "PureCreated"
    )
    .forEach(({ event }) => {
      console.log("PureCreated:", event.data.toHuman());
    });
});

Runtime Info

Pallet Index: 16
Event Index: 1
First Version: v149
Current Version: v393

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