chain/getChainInfo
Gets information about the node's chain
Request
undefined;
Response
{
  currentBlockIdentifier: {
    index: string;
    hash: string;
  }
  genesisBlockIdentifier: {
    index: string;
    hash: string;
  }
  oldestBlockIdentifier: {
    index: string;
    hash: string;
  }
  currentBlockTimestamp: number;
}