Transaction not yet indexed

668MHde6heMyHCeMfCQAXDVwpVPpF2R6wiHQZPBWDgQASzY8uNRVEB6N1tk2KM4VVLbKzGteFDjtbrLvt9vyTJ2y

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