Transaction not yet indexed

668ZEihyvVovBsrMRzhytbXimzaPPcbLuaL7hCvEsuyNabfYTcVfF5sGiyyR9Dh1YEDZ76wJs8tKaGdxWfAtFVPR

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