Transaction not yet indexed

668shUpD7obvmP5a7U4gXj1i6bdbm4PSQBmaGppb2eqhEqEEJ7ow2AfcFe1TkFhcUXT7aLqrjgKEwfipunohE45o

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