Transaction not yet indexed

668LsC7oZzcsYHMFo9YRrLdMi5tnpYBByiHuPH1VLHZn1RdB3b33g9KmsRKMk1ntjdCssXoVgvtWSWKL2YHVVC5q

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