Currently, ensemble results are given according to the model number. As in model_0/weight or model_0/persistent_beta_c_param here:

TA4 requests that these results include the model id number instead because, per Tom Szendry: The issue with the model order is that we are doing index mapping on indexes that can be updated which is unideal
In other scenarios we may have this result.csv without the given call as well so there may be no way to trace back to model_0, but there will always be a way to trace back to ac3c5752-eb02-4ffa-8325-6b4ae9c7891f.