Transaction not yet indexed

668Nuf3PyNFJNDArcH64jkez9wqGYaHFNABAkS4WyLZnyU2FmvLwpc6eH85KJ1GC9eiEmNrAVjyth3uQezmKgiu2

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