Transaction not yet indexed

668vSPnQuDRm3FN6a8jTATVJSr5SgK1LvgQnFXEVhjoQ21drMLcMnUC9V1nppMW9dNcLPeYRT7mUrf1yaEKMv7fE

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