Transaction not yet indexed

28c4sBP9EGMJKmgUBMijVHSu5fsRN4Fu3iktsXDfXoLWvHupE3Ts6kg5csYbqVJ49xk151sqYYdCJcJvqpv3W7WW

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