Hi @<1523701070390366208:profile|CostlyOstrich36> . Thank you for your advise, it definitely makes sense. Regarding to the first point, each dataset has a file state.json . In this file there os a key artifact_name e.g., data , data_001 , etc, and relative path of a file. I thought I can map this key with the chunk number. So, if I pull this file from s3 bucket, I can conclude which chunk I should download to get a specific file. Am I wrong?