Transaction not yet indexed

668EP6LRFUYoQ4hKwtoJFUPYeWqeDWzLRLTxQRCg1acgiALN4PFzjb2d3decJEUHamktdwYqU3hqndbSCEfoTrfH

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