https://s3.us-west-2.amazonaws.com/caltechdata/31/a2/609f-4f58-4a45-a6bc-6186b3765cae/data?response-content-type=text%2Fplain&response-content-disposition=attachment%3B%20filename%3D%22Lev2%3Ametadata.json%22&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIARCVIVNNAP7NNDVEA%2F20250410%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20250410T163231Z&X-Amz-Expires=60&X-Amz-SignedHeaders=host&X-Amz-Signature=6f158ad5639be6b50e34c33ff9c408193e9681bf4aa37287e34ae701c59e7a83