Transaction not yet indexed

668CtX9uiG44yEshpmG2zgLexy7CwYXGkcN2u2JN2DvgZm9er9FoNmCtNyUZvnsCERxRteTn1FucHJfHQHyPnPv1

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