DepositPlaced

Event v154 → current #3

Emitted when an account reserves funds for entering or extending safe-mode.

Useful for: validatorsdevelopersanalytics

The Big Picture

Someone put skin in the game to protect the network. This event records who and how much, creating an audit trail for later review and potential slashing or release decisions.

Use Cases

Track who is activating/extending safe-mode
Monitor deposit amounts over time
Build governance dashboards for deposit tracking

From Chain Metadata

An account reserved funds for either entering or extending the safe-mode.

Triggers

Emitted by

enter extend

Preconditions

Account has sufficient free balance
Permissionless entry/extend is configured

Effects

Storage Modified

Deposits EnteredUntil

Postconditions

Deposit amount reserved from account
Deposit tracked in Deposits storage

Event Data

#	Name	Type	Description
0	account	AccountId	Account that placed the deposit (hex -> SS58)
1	amount	u64	Deposit amount (RAO) (RAO -> TAO (/ 10^9))

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

Runtime Info

Pallet Index: 20
Event Index: 3
First Version: v154
Current Version: v393

Back to SafeMode Events