Created

Event v210 → current #1

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

View events on chain
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

Preconditions

  • Valid bytecode
  • Sufficient gas
  • Creator whitelisted if required

Effects

Postconditions

  • Contract code stored at address
  • Address deterministically derived

Side Effects

  • AccountCodes updated
  • AccountCodesMetadata updated

Event Data

#NameTypeDescription
0
address
→ contract_address
H160 Address of the newly deployed contract (H160)

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);

// Subscribe to Created events
client.finalizedBlock$.subscribe(async (block) => {
  const events = await api.event.EVM.Created.get(block.hash);
  for (const evt of events) {
    console.log("Created:", evt.payload);
  }
});

Runtime Info

Pallet Index
22
Event Index
1
First Version
v210
Current Version
v411