Transaction not yet indexed

668Ndh55ZVgKMUGXwJWkz1FgRT4VESzMCqNDeHAn99BkSSypwoRj12v87eEMW5dUqzjognAMWaTY3kDooaKCFzfC

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