Transaction not yet indexed

6668DAqdk7gPyuoQFeUCYaZnfA7cGSt7rMxiNEn3SgrJCwsN5t9CeqZwBfb6RRKmuYSv952kpjWafJRexWFiBHEx

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