Transaction not yet indexed

668DqNAh5i3mESCeK6mtmnTwnzSnRgZwkwVn9XQJp8UsHu2paou8eVqN3f57en9PCTsLvuNSwdsveawtTYbmcV9D

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