Transaction not yet indexed

668D57nPnxCjKFkuf5KZfbHBrkSATiSDeYuw5sEHrMkRMKNqdC8ynJpDrvqpaLcCz3gm9RQ8ii1chybQWviz2Ngf

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