Transaction not yet indexed

668pGD5LkiBA71Fd4rpsFqvSZPTZQ6FkjarmkaGcmiKMXSdHocEKDdUeNo2NsKkCHo1235e2MqHWPmY7ALfSue67

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