Transaction not yet indexed

668FpMmfSnkPzw9tr3FwnXCMRmRLzNaWyoquKDyZNhMPrL7P2XWo5YpEUJEHvHym9PWP4AzmBsdxSectN7BEx7ee

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