if idx >= k && len(sh) > 0 {
								parityOK[idx] = true
								hasParity++
								for i := range splitFilled[idx] {
									splitFilled[idx][i] = 1
								}
							}
						}

						splitDataShards := make([]byte, len(splitFilled[0]))
						for _, sh := range splitFilled {
							for i, v := range sh {
								splitDataShards[i] += v
							}
						}
						var hist [256]int