Transaction not yet indexed

668CGVZCEDo741JPKN9Xe9pWNYtb6HEjLNsT97x94cFb9j5YLZd2RXJSpo8NmKxN6aevNCZAbVeuP6NoKVTU8wnv

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.