Transaction not yet indexed

668WmfTozpyCnDe1ArZVAexv24bHESsaHJKtJubLg7FdUtnnbXEspnbbeQG3Xq52Fk4izYYGYACkCWV5XXn44o6m

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