Transaction not yet indexed

666MUPgbNXoZASxtCMCQE8k4xEp2wParCNKzKXAbomaEU53Cn8pjJtAw7TgxtgDPvsZDb76T6Wr671pFHLU9mQX8

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