Transaction not yet indexed

668dTZuiuTZCPeD37nytABaqgsFBoMuEWqZkqfvnvmXRP4fZtUTyUTjG5Wy6oQd7YYkLeeXQ4omdc4hnrm9jzvRS

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