Transaction not yet indexed

sm877QQoXQWeGdBwPEZjSbLyom1UndPLRTvqE5pU71UErjxDZGZKigCZuPCFb3Ppkdq8fsvN2HGRwsihkzKYFtf

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