Transaction not yet indexed

668WNzA3HRUZtGCBBYwjEZ87a4n2sS8VYUtLjSzjiKQPeb3f1hjAtrK2vG9BWEasQ6D4c7umMa2jvJ4kDo9MbTL2

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