Transaction not yet indexed

668wCWwEgyYJvaDPRLa7THfsYcAWS3QbxY4XvXQwJCXPcmePeGVgLTebqsWfMbEgFUGdiWijVv8qSJuN6d9kKsv1

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