Transaction not yet indexed

668PyABhdtSqWDs1RhN7Ub5k9SGQ5vTBjyz8evGyBFa2xc8EpkNNSpzTAoWxB6t1zE13apMAQTbS166s91WCj797

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