Transaction not yet indexed

5b1HZCRMtUCKpf3VAbUWF76xwJ4cKLHQaGoZLSqpVCbvPAgr6uthmEX45Tn71iRfUna6hYy56GcVsGUtiiRJAUqZ

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