Created

Event v210 → current #1

Emitted when a new smart contract is deployed to the EVM .

Useful for: developersanalytics

The Big Picture

Contract deployment makes code live on-chain. This could be tokens, DeFi, NFTs, or any Ethereum-compatible smart contract on Bittensor.

Use Cases

Track deployments
Build contract registry
Monitor ecosystem growth

From Chain Metadata

A contract has been created at given address.

Triggers

Emitted by

create create2

Preconditions

Valid bytecode
Sufficient gas
Creator whitelisted if required

Effects

Storage Modified

AccountCodes AccountCodesMetadata AccountStorages

Postconditions

Contract code stored at address
Address deterministically derived

Side Effects

AccountCodes updated
AccountCodesMetadata updated

Event Data

#	Name	Type	Description
0	address → contract_address	H160	Address of the newly deployed contract (H160)

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

Runtime Info

Pallet Index: 22
Event Index: 1
First Version: v210
Current Version: v393

Back to EVM Events