Transaction not yet indexed

668vhrVqyARkk2qUozMT5tBy821fVEKG771mo8yK9ujRC9BQqYPTr7hFgVFSCTs3JQBZeGWcEJmwAyM3SPG1AfJ9

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