Transaction not yet indexed

668FFwKyCNJArEiGiYKirq6ig79M9XAfmrpSvxjpAwKPm6bjM5QMuDwkXM9SSNJeYKGNXxTk85mMJZTW9YWvRxQf

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