Transaction not yet indexed

668zSjDHtnUDdJCKY4g2Cc4SfGQLdVPz929jFoGoaSM2kXgBGEf6UdYa6V1CKWLLtsF1XqvCDJScaoFeB67ctbhA

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