Transaction not yet indexed

668ZWEkRF8RYYDPcapGdQh6mTNmnunAUGNVi7GdRBMJxSVnKjGR8MMLsFWAK2jFzKU6rioFBu9vfsSAbrcGLQu6s

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