Transaction not yet indexed

28tgLwEFsoxNRKYcVVBphJatCtvLygXJKoHcvP3uKrMDcTqT6Dkc5hS8X2C9iSSaaUfw7kPDnAGE9rv2RGtqqp6k

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