Transaction not yet indexed

668S6mLYXhkZZLLwDQNCtUZoVsPoySimnrHSD6FkPnvxBiQG5gtYcikh8i4WqzkyLbNciugkGHzrB4MkCYER5HFb

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