Transaction not yet indexed

668EQ1KktPAUKNVzzMdu1aPtxn6qRCEB7kXwYP6uFj4j44QHQMjkSavpSPoSLYNmA4npPPUpfbTivUhXZcWoQ9P

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