Transaction not yet indexed

668NW9FbB1kSn1NsmLqakgYQMhfwePXxrNeByHfvE4B7k4bcZXDLCZPJx2ULaxdnY4xFcdDGGQZki7VFzFu5CZqu

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