Transaction not yet indexed

668Q8DReEXR3XANThtzQFnw3CcFj6nFEzmAcVZ45AVZ4vPCzuPtRDrMNGMZZKxjUnfHRisBED9DHHVTfmPDenLP8

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