Transaction not yet indexed

688QvUEbJRowevc5QLiLXW3yhLw5Z3RfipsrAPFQo65ueW1S6rtZGoUR9MqnErEJHaYqaXJN3Ey9qPvT6inzLk1

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