Transaction not yet indexed

668HkP4Ua6JjfyzNaPj7rFA9MsXrmh2FTiPeHLCJJ5uePL11pcqQD81YiiDUiUXRePzRephX7xCo5cVKgtmHL6xj

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