Transaction not yet indexed

668yJLcceXs2zFEvQyDLSQrCwboTPdHFExVzNGkBwp9eSRMesJmAcY9dMb7tsM7ytDW9Jf6pMmmfmymcFMRU53eE

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