Transaction not yet indexed

668XEfW75oV3hvaHKKihk7yZr8V5MxLDBLAVa6cHa4FG6mYbEikdS8gXmoAJVYjsB6byRMSCp9hSZjkCZAVr3br2

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