BlockHash

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);

// Query BlockHash storage
const key1 = [0n, 0n, 0n, 0n] as [bigint, bigint, bigint, bigint];

const result = await api.query.Ethereum.BlockHash.getValue(key1);
console.log("BlockHash:", result);