Transaction not yet indexed

668LSfjjQb1S31rqxwfhA3Q7UFd43odVXX3b3UbKFiSVVDXUZLBqrKHw58go2u1Yhrufoz7T9eNEBVENhxf6qiE8

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